Looks like a ton of man hours went into this DEV's so thanks for that. I think the new system will encourage more small squad PvP roaming and that is badly needed right now. 5% is the only way to start of fair that allows everyone to keep their beta progress ongoing. Once implemented I hope the DEV's do not respond to knee-jerk reactions from players. The new system will take some time to 'season' before we can fully appreciate it's nuances.
This is truly the anti-blob patch. It's going to take a ton of squads running around to try to keep up with 'everything'.
Additional risk vs. reward elements may need to be implemented at some point but this is the right foot to start on.