yup, can be used in Almisuifre's Orbit if you want https://i.imgur.com/PEfUHuX.jpg
> does that actually help in any way, though
nope but it sure works with portal magnets as well

Perhaps this is worse, since even a portal magnet won't prevent me from doing that.

As Leomievs said, portal magnets usually make this impossible. I'm pretty sure this map actually had a portal magnet, though; it was just weak and I could easily place a portal to the side anyway if I tried.

This makes me very sad

This move is a headache to prevent each time I make a laser map :P fortunately portal magnets are helpful