It's just personal preference really, I always feel a bit closer to the action if I can hear the sounds. There is definitely a balance to be struck between music/everything else (which you got fairly right in the fermoy vid I'd say). In the ennis one you have some great shits from right beside the wall and IMO being able to hear the noise right beside you would add a lot to it.

BTW I've never done vids before so don't take me too seriously