That's a very good point.
Accessibility is different for all sorts of people and my other comment totally dismissed that. Changes like this will open up more social gaming opportunities to those who have the limited access. The best part of online gaming (to me) are the friends you make, and this type of change helps opens that world up.
I'm glad you found a way that is enjoyable and comfortable for you to keep on gaming, though! I also used to only do PC gaming, especially FPS.
I thought for the longest time that keyboard + mouse was the only way to be really good at an FPS. Now I exclusively play with controllers on my Playstation.
I didn't stop for any health reasons myself, more of just convenience. One system is enough for me. And I do enjoy my PS4.
One of my favorite co-op FPS games is Borderlands. I played this game a ton with my sister with the local co-op mode. Sadly, this game isn't cross platform though so I cannot play with her anymore. (She lives across the country with an Xbox 360 version of the game).
I do hope that with Fortnite becoming cross platform, this leads to more games (like Borderlands!) doing the same.