strangely, I cannot agree with this line of thinking anymore. Yes, it did work out fine for the TIEint and Falcon and nearly all other problems with perceived imbalance in the past, but with this new Phantom thingy there simply is a problem with the point balance. For 37 points, Echo + advanced cloaking device + recon spec ALWAYS defeats 3x Academy TIEs, regardless of how many rounds you want to play this matchup. For that matter, you MUST field somethin that is a turret, or is at least PS8 + initiative to combat it, and it really restricts decklist building. At least when it comes to the problems we previously had, all you needed to do was "oh you should change your flying a bit and you'll be able to catch him"
And current meta is pretty much "bring as many ships as you can or you'll be fighting uphill." Which also severely restricts squadron building and in the case of fighters pretty much rules out high PS pilots apart from maybe a single exception.
4 x-wings can cover much of the playing field as long as you don't insist on flying them in tight formation. Any Rebel list can pack at least one or two anti-Phantom weapons on top of that.
Yes, this means you'll have to expand your lists. Yes, this means there's no longer a "one list that can take on everything." That's pretty much the point of ships like the Phantom. To shake up the "take this if you want to have any chance at a tournament" lists.