Until Mastodon (or others) can seamlessly interoperate with existing social networks, they have to gain mass adoption to become useful, which means catering to what the masses think is appealing even if you don't particularly agree with that determination.
It is of course open-source software and they don't have to do anything if they're happy with the status-quo, but imagine how better if would be if you had something with the branding & adoption of Twitter and the features & benefits of Mastodon?
I'm not quite sure I agree with the point you're getting at concerning branding and mass adoption.
The EU Digital Markets Act looks like it’s designed to force some messaging interop, and it’s regulation-driven, so it can be refreshed a little more dynamically than most legislation.
Crossing fingers for some movement on the interop front!
I come here just for the bikeshedding to be honest.