Not trying to be an ass, but I'm probably going to sound that way(I'm a real people person).
That statement is kind of generic, in the sense that it applies to nearly everyone(Looking at you, peacock!)I could make the same statement regarding Fukua i.e. Fukua with L Luger assist or Air George assist vs Fukua with LnL or Hornet Bomber. Not saying you're incorrect in any way.
That being said, certain assists(Bomber,Brass,Copter) REALLY compliment Squigly's ability to manipulate the amount of space on the screen(looking at you, zeknife. that meterless confirm brass/center stage is beautiful).
well obviously it applies to everyone like I said, but it just seems like playing against different (popular, obviously if you start throwing weird assists in there everything's different) squigly assists is a very different matchup MORE than with other characters (e.g. filia/copter and filia/bomber are more similar to each other than squigly/copter and squigly/bomber IMO). but again I don't play squigly so maybe its more of a perception of skill levels and the different assists are coincidental