No problem at all.
My only criticism was that you said the newer Matrix got worse mpg when it just didn't. Barely noticeable gains is not the same as worse. Saying you didn't like the design, that's always subjective and thus I didn't criticize that. Heck, I don't like the car myself but its evident Toyota wouldn't be silly to give the current Matrix a new engine that actually got worse mpg than the old one. If Toyota kept the old 1ZZ engine there's the chance it could get worse fuel economy just because of the heavier body.
You just proved my point there. Honda didn't initially have this amount of aftermarket support, that used to be territory of the muscle cars which still to this day have excellent aftermarket support. The only reason aftermarket parts are so cheap for the Civic is because a lot of people deemed the Civic cool enough to sport these modifications and therefore the aftermarket can make a lot of profit by selling lots of modifications for those cars. Its not even a Honda thing, the Accord is more readily available and its from the same company that makes the Civic but its aftermarket support pales to the Civic and Integra.
If the Corolla was the cooler one, it would be getting the aftermarket support even if its the more difficult one to mod and it would be the cheaper one to mod as well. Heck the Corolla even got a head start with the Initial D craze, the AE86 is a aftermarket favourite. The difference is few deemed the successor Corollas to be worth dumping huge amounts of money into for mods, hence the aftermarket prefers to ignore them even though they're very readily available.
Its down to consumers to essentially elect which car they feel is cool. Scion is supposed to be aftermarket friendly with Toyota designing them so that they can be easily modified, but not enough bought one and not a lot modded them either. The aftermarket scene has no brand loyalty, if another car succeeds the Civic in the cool factor you'll see the aftermarket tuners flock there as its their only way of survival.