I mean, the point stands that 200 points of fighters would be a lot of clutter on the table, but I don't know that it needs an arbitrary limitation during list building.
The problem is if you take a Corvette and Mon Montha and then 240ish points of fighters and bombers. The Corvette just spends 6 turns running away from everything. Once the Imperials get their version of the Corvette you could end up with two fleets running away from the fighters and otherwise having a game that ends up being far from enjoyable. You could experiment with a Rebel v Rebel fights and have no limits on squadrons, have one player take a "normal" fleet and the other a Corvette and Squadrons.
I would give most players a game or two before the metagame broke down to squadron wars.
I'd be very unconcerned about a list featuring a ton of squadrons and no squadron commands. At least until the Rogue keyword hits.