Theo says it's because if they drop $platform, they'll lose the devs that like working on $platform who quite possibly work on @other_platforms as well.
Change is hard, but I think it's worth a shot. And you never know maybe spending more time focused on real needs will create a better product from all the extra attention given to things that are work worthy.
Realize that funding for OpenBSD has been an ongoing problem for decades now. Theo would like to focus exclusively on managing the project, but instead he has to keep dropping everything to deal with the funding problem.
And, the OpenBSD development team has contributed a lot to the software community, so it's extra frustrating not to get enough support back.
I'd expect that at some point it just stops being a fight you want to keep fighting.
