In this case, privacy could be a concern. If an officer is wearing a body camera during a search, suddenly there's a permanent record of the inside of your home and plenty more opportunity to spot unrelated crimes to hold against you.
I was thinking more of the barge-down-the-door-without-a-warrant sort of search.
I'm overly sensitive to it because I live in a college town with a 4th amendment violating county ordinance. If the police suspect underage drinking, they can enter the premises and arrest occupants for any other violations they see.