As the support article said, they don’t usually directly reply.
That team collects feedback, analyzes it, and works with the various development teams for all the games. This does result in games that have more accessibility features and improvements. For example, there was a patch recently to address visual and motion sickness issues in WoW.
https://us.forums.blizzard.com/en/wow/t/updated-accessibility-options-for-motion-sickness/829191
That is an example of the process working. However, not everything every player wants is going to end up addressed - or addressed in the timeline they would like.
Sometimes the answer ends up being that the Devs understand the problem, but because a person has alternatives, they don’t feel they need to change a feature. There are a bunch of puzzle type quests in the past three expansions that I can’t do for various reasons. I know others have reported them but the Devs felt that because there were other Daily or World quests I could do a different one - which is what I ended up doing.
I am terrible at the jumping stuff too - I usually use my movement skills like the grapple hook rogue thing of the venthyr covenant movement skill. Pretty fantastic for getting around areas that are hard to walk - or the darn jumping puzzle chests/treasures.