I think generally inclusive design is improving - naturally there will always be hardware that’s unsuitable for some but hopefully the synth folks catch up a bit with other industries.
It’s something I care a lot about in my line of work.
Often this is as far as even quite large companies think, but an important aspect to prioritisation is ‘impact’, in addition to ‘reach’. A design choice you make can have an impact on a very small number of people, but it could be the difference between them being able to use it or not. Ideally these things should be prioritsed over things that have a very minor impact on many people.
But more generally in the software space we try to focus on inclusivity rather than accessibility, which is more about ensuring products simply work for everyone rather than having additional adornements (like braille) which will always be a niche requirement.
Interesting subject I’ll be keeping an eye on it!