He implied that we don't change this because it would affect donations. The only way that could be true is if there were people who only donated to do Battlegrounds, but who wouldn't anymore if there were changes. Anyone who donates for other reasons wouldn't lose any of their motivation to donate if changes to Battlegrounds happened.
For example long time ago like 2y ago i donated over 300euro just for Bg's, you can check that out had a priest shadow named Burnday on alliance, i find Bg's quite fun! :)) SECOND I seen some thing on a private server like 1y ago like rated bg's there was a NPC in capital, wich would teleport all your team group raid in a Bg, first you would make a Bg code after the other team would type trhe code and join, dunno if it helps, but maybe it will.