I know my opinion on this matter is unpopular even within Sym mains (new and old), but I actually hold the opinion that Sym 2.0 was between balanced and slightly overtuned. The only changes I think she deserved were some QoL stuff, like visible Shield Gen radius, or turrets having an HP value above 1 to prevent “sniper D.va” from clearing them.
Mostly, because I think her kit strength was inversely proportional with the amount of coordination happening in the match. If the enemy team was very coordinated, it was relatively easy to ignore the advantages her Shield Gen offer, and to swap attack routes as soon as someone detects which one was protected by turrets. If your team was highly coordinated, they don’t need your zoning, TP was useless (you should wait to regroup anyway), and her gun made it hard to focus fire on demand.
But take her in an environment that was not highly coordinated (like 95% of ladder matches), and her kit was designed to glue together a lot of lone wolves running in seven different direction. Securing escape routes, giving the enemy team another priority target on your ults, Photon Barrier helping you win shield wars, and so on.
And that’s not nostalgia talking. I’ve been saying that even before her 3.0 rework was even a possiblity.
I see them as two different characters that were developed around the same theme. Kinda like Ashe/Widow and Genji/Doomfist.
That’s also why I don’t want a revert. I want Sym 2.0 and 3.0 to coexist. I don’t want Sym 3.0 fans to feel like I felt when my main got deleted.