I have to agree with Ko.Fe. here. The angle seems to be more that the younger generation is into anything "retro" and not film specifically.
They just like that it looks... retro.
Similarly in conversations I have had with them the pattern emerged that they like my cameras (they look old and quirky) but usually have absolutely no interest in carrying or shooting these for themselves.
Edit: If Kodak (ideally not Alaris) gets even a couple of cents from each of these shirts or other licensing fees, I guess that's still good for us film grognards.