Interesting, I saw this just the other day too, but didn't spend any time digging into it.
I stopped planning for anything but single player, because, well, that's the reality of it for me! I can't offer much advise due to this, but with your panel and the much smaller selection of 3 & 4 player games (much less having a need for high button count), that sounds reasonable to me (the single player).
Good to see you posting.