Numismatics And Non-Fungible Tokens

I hope not. I really don't know how it might impact the numismatic hobby, but I can't help but thinking it is an additional complication that I personally would not see value in.

I find the whole concept technologically intriguing but ultimately bizarre.

Not that bizarre, it's basically the electronic equivalent of owning a print of some famous artwork. It's not the real thing, it's just a print, but people who are sufficiently interested and can't afford the real thing can well end up collecting even the prints.
(See also: the thriving industry of obviously fake copies of very rare coin types.)

OTOH, now that it's been well-established that approximately anything cryptocurrency-related provides uncomfortable incentives for polluting the environment with essentially no result other than some electronic numbers, anything that looks like it's promoting cryptocurrency starts looking distinctly uncomfortable itself.

Sure, but after working with IT for nearly 40 years, I personally find it strange we can now give significant value to a specific copy of a digital asset and not the actual content. It used to be that what the data represents... intellectual property, customer lists, ledgers, schematics, music, movies, whatever... had value no matter who had the copy or how many copies there were. The case was that more copies could dilute the value (why buy an album if your friend could give you a copy), but now only one specific copy has the "premium" value. I never would have guessed back in the Napster days we would figure out a way to give one specific set of data a full premium value. So yes, it is bizarre, for now, but I will get used to it.