It really isn't nonsense though... Granted I admittedly have a very heavy bias against the BvS Batsuit, because I've never liked it since Day 1, but while the suit on its own apparently was fine based on set pics, it really gave an overly chunky vibe throughout the movie when Affleck himself was in the costume. It didn't mesh well with his build at the time.
Personally I dig the new costume. It is comic accurate, but in a way that works more easily on the big screen, by drawing inspiration from the existing grittier comic and video game interpretations of the character. Based on what all we've seen so far of the sets and the possible leak, it definitely seems that Reeves is aiming for a far more stylized and gothic take on the world of Batman than Nolan, but it's more Lee Bermejo and the Arkham games than the mainline comics world- and for Batman, I think that's the right call.