I'm not a hater and honestly do hope they sound better. It's just that most over-ear BT cans are a bit lacking (haven't heard the Bathys). I will probably get the next version of the Max, hoping they cut some weight and figure out lossless over BT.Let's wait and see, but having these, my bet is that once wired, they will sound better than your Meze 99.
However, some people here are randomly saying the Focal Bathys (MG and non Mg) will sound better when both are wired. For sure they will - I have these - they are in a different class - and you can really easily her the lossless versus non-lossless when you compare it on them. They are at a different price point though. And do have some disadvantages though. Not sure why all the hate and random comparisons. It's like someone just gave us a feature on a Toyota Lexus and everyone is complaining it's not a Porsche Cayenne.