It seems to me that the new wording is bound to cause confusion, as ot reads like bounty hunters can't, well, hunt factions listed on bounty board but rather need a strictly specific list of targets they can engage. If it changes little to nothing – was it necessary at all and what so significant have occured that prompted the change?
Hunters already primarily fought other combat ships and chanses situation LuckyOne have described will occur are nearly zero. Sounds like waste of space change to me.