You're dodging the fact that the injury statistics show that ACL injuries have decreased due to the introduction of shaped skis. "IMO" has no traction in science.
I ski a 21m ski(although not a race ski) and don't catch the tips and tails ever. I don't know if its your technique or tune, as I detune the first .5-1 inch or so of the tips and tail of my skis so they don't hook. I don't know if skiers normally do that since my skis never come detuned from a shop, but on cambered snowboards if you dont do that you'll get hurt at some point. Coming from a snowboarding background also got me used to tipping a ski/board on edge and carving vs having to unlearn habits from straight skis.
I haven't detuned on over 30 years! Detuning is not done any more that's what the base bevel does on todays skis. Which is why the shops don't detune any more.
The only reason to detune again IMHO is that one can not ski balanced and does not have the feel for the edges.
As to bad habits from straight skis, have none! The technique is so similar other than a bit of timing difference which when you ski well enough takes a few hours to adjust to.