Cornering speeds are dictated more by the components between the seat and wheel than the tyres.
In fact, I'd dare venture that all those running Michelin Super-soft II Mega-not-quite-slicks are the ones more likely to visit a ditch or wall as they'll be convinced they have unending levels of grip.
Besides, it's a Clio, what's going to happen? Wild snap oversteer? No. Nose-dragging into a wall? More likely. Far easier to deal with, no matter if you've got track-spec rubber or greasy remoulds.
From my perspective, I'm just a brand-***** for tyres, EVO can say what it likes but I've not seen them do a group test of tyres with 5k miles under them.....that would be an interesting and more relevant test than doing 40/50 miles on some sticker-fresh boots.