Agreed. It's lazy and self indulgent. It partciularly annoys me when artists who have established their own little public "personalities" and takes on life and shoved them down everyones throat through the media then cover songs with specific meanings that are counter to their vapid nonsense without any irony whatsoever.
Not really related to that rant but this made me think of the intro sequences to that show Weeds where they had various artists do their own versions of "Little Boxes". Many were crap but some were quite interesting. Most of even the good ones though, IMO, weren't as soulful, impactful and fulfilling as the original(s) performed with simply an acoustic guitar and an angsty vocalist really believing in what was being sung.
I like doing covers and used to make decent money doing so live but if I were a popular artist signed to a major label releasing one for broad human consumption I would make darned sure it was at least somewhat as interesting and artistic as the original... if not more so. Cripes... they WROTE THE SONG FOR YOU!! The least you could do is make it sparkle.
Like I said... lazy and self indulgent. Keep that crap in your bedroom/shower if you aren't even gonna try.