You’re talking about the slope of the panel, right? My four player panel lays flat. I was thinking a slope would be awkward for players 3 and 4 too. It also sits slightly higher then a normal panel so I think that helps a little.
Regarding angling the sticks, I can’t figure out what the big debate is about for the life of me. It’s just never been an issue for me or anyone else who’s played on the 4 player panel, but I guess some people have a hard time with it.