The Frontlines Premade issue has not been fixed.

[Atreus]

Really it wasn't a problem during Slaughter on Aether, revisionist history much. Or during shatter on Aether either really no problem at all. It has always been a problem. Its just usually they get bored and stop queing and stuff evens out.

You're not exactly providing anything more factual in terms of the "history of Frontline". Full parties were not removed for several expansions, several updates, and several map additions. That is factual.

Also why aren't the same people so upset about this arguing for premades in solo que feast? Why because they know it would be unbalanced.

Easy. Because Feast already has several ways to play it. Solo queue ranked, light party ranked and custom games, and training mode which allows bringing a partner (which is more influential than one 8-man party in a 72-player game).