With the elimination of the VVL feature, you loose power band width. If the stock(ish) cams are used, the low end power is sacrificed which equals driveability is sacrificed. Because of the way a positive displacement supercharger (like the roots type) works, you can "fill" that low end gap (read that as compromise the rest of the engine's potential) with tuning. Is that a worthwhile tradeoff for OEM wiped cams? There are aftermarket rockers/cams readily available that effectively eliminate the cam wiping without sacrificing low end performance, yet increasing overall performance.
The Ferrea rockers are shiny and colorful, but nobody can see them when installed...so that's not a plus.
Also, eliminating the VVL functionality is NOT compatible with naturally aspirated engines or high volume/low pressure forced induction like turbochargers or Rotrax superchargers but can be made to work with ONLY a roots type blower because of the way they work. Ah, no thanks, I'll pass.
If we take a look at the duty cycle of a grocery getter or a soccer mom minivan, that is exactly what the OEMs design for...99% of all automobiles sold. That is exactly why the OEMs choose the roots type blowers to "force" up the output for "sportier" models of the "grocery getter". But is that the duty cycle of a true sports car steeped in F1 heritage? Not only NO, but hell no! Too many compromises for my Lotus. Just because this was an economic compromise that Lotus chose, doesn't mean I have to live it. After all, two wrongs don't make a right.
Whoever said that island life is great was never committed to Alcatraz...