I guess you never played av bgs who lasted for hours, only to end with a score of 1 - 0 because both teams were equal, nobody could burn towers or kill mini or even kill eachother. Bgs CAN be competitive, spare me that "bgs aren't competitive" bull. And not only AV bgs have the chance to be competitive. There are other bgs that are viable, all you need are 2 teams who are equal in strength. Or what exactly do you consider "competitive" ? You don't need a matchmaking rating for bgs, all you need to do is put geared people vs geared people and gearless vs gearless. That's it.
Ofc you have a broken mentality of "there's nothing competitive about bgs" if all your bgs are lowbies vs geared.
"random battlegrounds are exactly as the name implies completely random" ... indeed, you can enter av, sota, isle, etc, you'll get inside one of those bgs at RANDOM. Get it ? RANDOM BG. You can still keep the RANDOM part even if you pair geared vs geared and gearless vs gearless. It's not like if you get paired geared vs geared, the RANDOM bg part suddenly vanishes.
As the name implies, it's random BG not random team.