As a relatively new player, I can say that I experienced some frustration learning Yomi. I learned it with the 2nd edition physical cards, and relied on the help text often. There are many mistakes not just in grammar, but in rules as well.
I pointed out some of these errors, and was (correctly) told to use the icons as an authoritative guide–not the help text. Now after playing online, I’m still learning a lot of things I never would have otherwise (i.e. Rook’s special blocks, Arg’s BS is an ODD for mixup normals, etc.)
But, the help text and abilities certainly could use some “cleaning up”.