if you just said rhytmical complexity i'd agree with you (with the exception of some chillout), but if you factor in synthesis/autmation/effects/melody/harmony/progressions dnb is rather simple (not that it isn't good, i like dnb very much and you have posted excellent examples).
take for example
this track. do you have any dnb that's more complex in one of the areas i mentioned above?
it isnt just rhytmical complexity,
dnb have most complex basslines,layering,and dynamix ever.
like I said,I was into psytrance ( mainly older goa stuff,but new school too ) years before I even know what dnb is,I still love it today but its nowhere as complex as your average dnb tune
why? lets take it step by step
Hi hats... psytrance have very simple hi hats just like most 4/4 music,one or two hats,simple patern
you average dnb tune will contain around seven breaks layered together with main hi hats,just the main hi hats have alot more complex patern,put all the hats from brakes into it and you have ocean of hi hats and extreme level of overall movement coplexity,the proccesing of those hi hats is alot more complex too since there so little room to fit all those hi hats,some very complex techniques must be used,also each of those ten hi hats must perfectly fit other hi hats + all layers of bassline while it must sound good.
for example I would post tutorial from very good producent called Danny Bird,he will in tutorial show you how he layer seven breaks to make tune thats just average in drum complexity in dnb world
http://www.youtube.com/watch?v=wX0LUMHzL90
so the dnb is lighyears ahead of psy in beat complexity,both rhythm and layering... same for bassline and synths.The progressive synths of psy dont stand chance about progressive everything of dnb in terms of complexity
Kick and Snare.... psy dont even have snare,thats not necesary bad thing but it means half the complexity even if the kick was same complexity as dnb kick witch it isnt.
dnb kick and snare are alot layered from up to 4 other kicks and snares,it takes years to master this technique,to make then play together as one no to fight over while in psytrance is usualy one synthetized kick but I heard even layered one in psy but its far less used becose with synthesis you can make one kick so solid that you dont need layering at all,see I dont say dnb kicks are better than psy I am just saying that on average their more complex.The snare drums are even more layered in dnb,its whole world of compressors,limiters,distortions
these beats switch alot,you can have four beats in one tune,each beat have as much elements and complexity as about eight 1994 era jungle beat,and 1994 era jungle is already far more complex that new school psy,I could write all day why dnb beats are so complex.Also the edits in drums happens alot,where in psy becose of its hypno vibe its nearly not happening at all.
spl - initiation
http://www.youtube.com/watch?v=4ucqeIcVMlA
Bassline... the psy bassline is extremly simple,thats aggain not bad thing since psy is hypnotic music.The dnb basslines are made from up to 5 layers,this is place where dnb shines,in the complexity o those basslines,the dynamix and movement is far beyond anything.Plus the melody line is many time long up to 16 bars and then it will switch into entirely different melody after those 16 bars and back aggain.Some bassline production techniques,mainly from Noisia camp are made using techniques so complex that you or me dont even dreamt in wildest dreams how they process them.In Psy the bassline and synth have alot progresion but layering is very simple
the number of synths and bassline layers is far far far bigger than psy,but I know some extra quality very progressive psy comes close with its number of sound but the dnb is still ahead.Dnb have biggest number of rhythms from all music,it isnt just amen,its about god knows how much type of breaks + fat dose of unbroken nu school beats.
example of very complex melody bassline
Pendulum - Terminal
http://www.youtube.com/watch?v=bujYpRkZJ4Y
example of 4 layer thick bassline
Sub Focus - Triple X
http://www.youtube.com/watch?v=XT4BzJ3_vh0
example of high dynamix bassline
Noisia - Stigma
http://www.youtube.com/watch?v=onLIQrJ7gMQ
last thing is sub bass... dnb & dubstep have most dynamic sub basslines this planet has to offer,psy with its constant kick sub isnt even competition in terms of complexity of sub freqencies