Twitter fucked over every developer who trusted them a few years ago, and is now trying to recast their business as developer tools and services (since the core Twitter business probably is not a $20b business...). One of their biggest roadblocks is getting developers to trust them again.
The only way for them to get developers on their platform is to wait for the next generation of developers. Literally nobody will base anything on their stuff now, and this has been the case for a good few years.
And then they do this?