To answer the question somewhat seriously (if in fact the question was even serious at all).... I just got back into skiing again about 3 years ago after about 15 years off. But I started skiing when I was 5 and skied for the next 17 years after that. When I stopped skiing I was on 210's. Powder skiing mean skiing up to your knees or waist in powder--there was no such thing as skiing on "top" of the powder.
My first day back on skis the rental place put me on like 170s or something and I was like WTF. On the other hand it was like not a single day had gone by since I had last skied. I doubt if it would have been that easy if I was back on my skinny Fischer 210's again.
So yes, modern ski designs help you ski crappier snow better faster and make turning, skidding, jumping of rails or whatever much easier also--but you still have to know how to ski in the first place. However, IMO modern ski designs also enable the flip side, which is really crappy skiers skiing way too fast, out of control, etc. than they ever would have been able to on old ski designs. This is part of the reason everyone wears helmets now too---it's more for your protection from being bashed by out of control skiers/boarders than anything else.
But to say you don't have to put effort anymore is pure BS, unless you're just cruising greens at like 10mph or something....