Just spitballing here. First and foremost on the listening side, if used subtly, reverb is a great tool to make the music feel more organic. Theres an uncanny quality to very dry sounds, since we are subconsciously used to some level of reverb. Then, on the playing side of things, reverb is a great way to hide mistakes, muffled noted, and every other happy little accidents.

I’m sick, called off work, I’ll blow my nose, try reading, have a cup of tea, take a nap, blow my nose some more, eat a can of chicken noodle soup, and yeah thats probably it really.