TBH, it's just more stuff to get wrong if you have to lift your hands from playing to activate.

If you are doing mission critical stuff (you are going to record it to audio later, etc.) it makes sense to not only not worry about stuff you can edit later, but also to make a pass with the tempo a bit slower than usual (you can always speed it up a hair later) and maybe not play the RH solo until the backing is laid down.

Sure, it takes a bit longer, but you end up with stuff that's a LOT tighter and more polished...