The Frontlines Premade issue has not been fixed.

[A-res]

"Force Frontline Freelancer!" / "Solo queue only!"
No. A terrible idea. This is as equivalent to forcing solo queues on raid finder for PvE raids. If I want to, I want to RP in PvP as Adders or whatever grand company I'm in. Don't force me to be in a grand company I don't want to be in.

"Premades kill everyone!"
PvP is Player vs. Player. Competition. If you have the mindset of an easy win without effort, this isn't a mode for you. Put in some effort like the rest of us that "mow down the pugs". There's all kinds of guides out there for both feast and frontline. No excuses at this point, SE has already toned down PvP immensely. Like others said before me: find a team, put effort, and you'll win. If you plan to PvP to win, good for you, if not and just want rewards, shame on you.

PvP doesn't need any more restrictions. It needs more viability (8 player Frontline and 8 Player feast) because this mode is dying with all these restrictions.