Well I like it too, but I think its the kind of weird concept that's hard to sell to a movie going audience that may not be familiar with Thanos' backstory.

And for the record, I actually kind of like Movie Thanos. I watched Infinity War last Saturday, and I was prepared to hate the guy, but I didn't. He wasn't smug or gloating like Comic Thanos can be, he was just tired and kind of sad. I mean he couldn't even muster a smile after he had gotten what he wanted.

Of course, I think they're saving the gloating smugness for Endgame if the voiceovers from the trailer are any indication.