Everyone's gear in Random Battlegrounds are scaled to the same ilevel, or there's a set of random bg gear that only works in random bgs, since some classes use different secondary stats obviously.
Currently I would say the vast majority of people playing random BGs are people who are bored with all their gear already, or people who are fresh 90s trying to gear up. What happens is pretty obvious, the more geared person dominates the lesser geared people because of how important gear is. This makes it no fun for the fresh 90 and probably the person who outgears everyone unless they just like dominating everyone because of their gear.
This change would make random BGs more fun in general for everyone and not make queuing for random bgs just a terrible experience for people having to gear up, or a free ride for people who have geared up (since they're random bgs and don't matter anyways), it would also make randoms, even though not very important, more about which team is better, and not which team is more geared.
tldr; Everyone has same gear/stats in Random BGs ONLY (not rated stuff) to make it more fun for everyone and not put you at an extreme disadvantage just for being a fresh 90.