[threeseed]

The target audience are people who aren't looking at replaceable batteries and upgradeable storage as deal breakers. Especially since there are better/popular alternatives for both i.e. powerbanks and wireless drives/internet. And the people who make that choice are the manufacturers who base their decisions on the general public i.e. product research.

So maybe you, the OP etc just need to understand that your requirements are niche and unlikely to ever be met in the more popular phones.