In theory maybe so. But have you ever received the the privacy disclaimers tract sent to you by a credit card company or service provider or anyone else for that matter. It's several pages of tiny print, written in legalese, meant to confound and confuse. It is a document that properly requires a lawyer to interpret.
As much the McMuffin libertarians would like it, in no way should private enterprise should not be allowed to do an end run around the Fourth Amendment, just because … well … just because it's private enterprise and the god of libertarianism decreed it.
The 4th amendment doesn’t give you free stuff. If you don’t like the cable company collecting the info, then don’t buy cable service.
>>>should not be allowed to do an end run around the Fourth Amendment
The Fourth Amendment is only a restriction on government action, not that of private parties.