Falco can avoid a majority of those by recovering low or below a ledge lip like FD. ROB can't shoot his laser through the stage, so that makes no difference. Honestly most of your examples are for a Falco that doesn't recover low.
ROB shoots the laser from the edge angled down. He can also cover very low with gyro drops. Sonic spring and Bowser armor work best when Falco is low. Sheik run off fast fall double jump chain double jump fair up+b for a stage spike or w/e if he's below lip, or just run off chain double jump fair if away from stage [this one looks super cool too].
Yoshi eggs, snake grenades, and more also work - they're just really, really inconvenient to land, which is why I suggested nerfs in the first place.