Dunno if I agree with that. I run my TRF car (with an F-type chassis) on prepared asphalt with the pivot ball t-plate setup and the mulitlink suspension and the car works well. The only complaint I have about the multilink suspension is that handling can be inconsistant if you don't check the mobility of the kingpins before every run. If they hang, even a little, I clean them out and put the Paragon lubricant on them and they work great.
Where I race, there are guys running the "L" chassis cars along with "F" chassis cars. I think the long wheelbase cars look cooler, but they compete well, even on a very technical track. You could try doing something like the ROAR 12th scale classes, where you have a stock/6 cell class and a mod-open/4 cell class. Now that would be cool! All you have to do now is find a bunch of guys with "L" chassis cars! I'm not building mine, so count me out (for now.)
If only I could find a red wing set... then I could make a Target/Ganassi Racing car....