My only problem with it is how 5,000,000,000,000,000 trills worth of NLDs can be damaged without firing back on 500 thousands worth of bikers. Such a small amount of bikers can hurt such a large amount of staff without loses which doesnt happen with the other routes.
However the negatives of having lots and lots of bikers will show in other areas when you are being pwned cos you dont have enough TL.
The only reason it doesnt happen (them being pwned) is because those who mass bikers are normally the active players in a decent ally who can get their defence.
You can't really change bikers as they are needed to stop POMS being overpowered, however the reality is, the only way to stop the most overpowered unit in the game (POMS) is to have a unit like biker.