My old solution still works with this version of Broadway, see the attached replay with the wall setup (rest works like in my old solution). To prevent this, from left to right, the terrain has to be rising or of constant height, but never lowering.
I've found a different solution though, and if that's intended, then hats off, this is amazing! (With one more climber or walker it could even be turned into a 100% solution, though 49/50 leaves more possibilities thus making the level harder, probably, if there aren't any other backroutes.) I'll have another look for alternative solutions.
EDIT: I'm dumb, 100% works perfectly fine just the way it is, without additional skills.
Had another look at Love is Over, and yeah, there's nicer ways to do this. Can't get around the precision of the keys moves though, obviously.
I also made a new level, the design is preliminary, because I don't have a nice trap which is a little slower than the squisher, but not as slow as the factory, but solution-wise it's final.