The NBOMe derivatives may not have the same TNFa inhibitory function - however, if this activity truly is secondary to 5-HT2A activation in aortic smooth muscle cells (and is not instead mediated through another pathway) then perhaps it will be just as effective for this function afterall.
Again, if it truly is 5-HT2A mediated, then it would be interesting to know through what signalling trafficking pathway it functions through, and whether psychedelic activity (and so, the concomitant signal trafficking profile) is necessary for TNFa inhibition in this cellular target. As you may know, all serotonergic psychedelics are 5-HT2A agonists, but not all 5-HT2A agonists are psychedelics. Lisuride, for example, is a potent 5-HT2A agonist but is not at all psychedelic. This is because it does not cause the same signal transduction behavior.
This raises the possibility that a non-psychedelic TNFa inhibitor is possible. I suspect it is. I would not be surprised to learn that there already is - I haven't checked the literature recently in respect to this topic!