Masks are still terrible (how to make a square with actual W/H dimensions)

Dear Adobe,

The mask tools in Premiere feel like they're from another developer and ultimately just encourage me to send everything but a simple edit to AE instead.

If it is too hard to make your tools consistent across apps could you at least allow us to copy and paste shapes from Illustrator, Photoshop, AE into Premiere to use as a mask instead.

The existing mask shapes and path/point movement also feels like it happens half a second after (or ahead!) of your actual actions and just feels far more clunky rather than precise.

Per vertex feathering like AE would be good too (but not if it slows down the mask point moving any more!)