Not that I'm saying this shouldn't be an option, but I find the Simple tab to be great! If your workflow just has a few inputs, it's easy enough to set up for the Simple tab and never see the spaghetti again. But then again, I used to be an A1111 user so I guess I'm not "advanced" enough to worry about :P

Yeah the Simple tab is for Simple usage, not for Simple users.
The primary target audience of it is in fact the most advanced users specifically, the kind that make wildly complex workflows and want to share them.

(But yes hiding stuff you don't care about should indeed be an option available)

Ahhhh... I should have taken a closer look.

Apparently I am the "Simple" (minded) user, since I didn't properly understand the tab and didn't care to check further.

Apologies.