No, you're just out of touch.
I'm not the one comparing tabs to tiles within tabs, as if their usefulness is comparable by any reasonable margin, hence your hyperbole. Yeah, I know, you can ultimately do without both, so they can be comparable in that regard, but the impact of both isn't the same by a long shot. Bit of a false comparison you pulled there.
Tiles are useful for some, but they can be superfluous for others. We're all different, and I don't begrudge the inclusion of tiles in Firefox if there's an option to disable them (as long as they're not a means to advertise). I can see their use for some types of user, but I can also do without them for my type of use.
Still, whether one's in touch or out of touch, tiles are hardly what one could reasonably call a major feature. A useful feature, an additional one, but hardly the end of the world if not included.
Anyway, moving on.