It partially solves a problem. While, yes, the strobe environment and use of triggers by the actors is a big part of going through a house, the "near-miss" scare, which is utilized a lot in the houses, wouldn't be able to be used. What do I mean? A "near miss" scare is when a scareactor pops out (hopefully while you are distracted by either the trigger or another scareactor) and pops in and pops out of your walking space. If done right, it's a very effective scare that (depending on the guest) briefly stuns then or will make them scream/run.
Also, triggers aren't a scare. Triggers are there either as a lighting effect/sound queue that the actor mouths words to or its there as a sound queue that is meant to distract guests from something happening elsewhere in the house. An asylum type house could maybe be cool with Plexiglass, but everything else would be REAL rough and a real lack of scares, probably puppets used as a primary scare.