You’re getting (seemingly) mad over a legitimate technical issue. ROBLOX is built for being optimal for a large range of games, and that holds true in its GUI’s portion, if there was a way to make these just as optimal as non-rotated GUIs clipping then it would have been done.
If it does get done either they found away around some technical issues, or felt the downsides to be worth it, but in the meantime we have to be patient as we’ve been given multiple responses as to why it’s not currently in the engine.