When you're actually making music, and not just listening to a promotional walkthrough video for a library, it makes sense to match reverbs across many instruments in a track. To have 10 instruments all with different reverb units and settings just sounds like a hot mess. If I'm not mistaken, many musicians like to use a reverb bus. So having a reverb on each instrument is overkill and messy.
It would be great if developers provide a "dry" library along with their releases that has no reverb effect added. Otherwise I find myself just disabling the reverb and resaving the patch each time I load a new one up. Very tedious.