There are people with only one functioning limb playing this game.
https://www.youtube.com/watch?v=ogCRNvghbiw
Your argument is heavily flawed, unless you imply that you want this game to be balanced around blind people. One of my FC members is above 60 with several visual and auditorial impairments and he plays this game just fine. He even cleared savage content with us.
The gauntlet in OP's post is neither reaction intensive, nor complicated. In fact, it can become very easy with some very minor and basics understanding of the mechanics, such as being able to dispell multiple orbs with one hit, and by actually using your sprint.
On another note - just because people actually want others to read the instruction manual/tutorial to a video game, doesn't mean they are elitist. You should be aware of that at your age.