Having come from outrigger canoeing that several years ago went through de-regulation of minimum weight to move with the improvement in technology, I am completely in favour of embracing new technology but without regulation of some kind, issues arise.
The level playing field of a weight restriction or design standard means that you are comparing as much as possible the athlete and not the craft. Remove just the weight minimum in K1 racing and you will have featherweight kayaks only capable of racing 1000m before they dissolve, cost a fortune that only the super rich can afford making kayaking about the haves and have nots, and some talented kid without a lot of cash may as well not even try cause his 5 year old K1 won't cut it.
"not so strong boats just for flat days" - weather conditions here on earth tend to vary. Your flat day might start calm and end in a cyclone, boat breaks, you swim, need rescuing putting other people at risk cause you want the fastest boat. Skis should have to meet minimum safety and floatation standards to protect paddlers who don't use their brain when purchasing their new super light rocket.
So far ocean skis have been immune from the regulations that govern other canoe and kayak sports. It is not an olympic discipline and therefore is unlikely to attract the standard required for fair and even competition. Like it or not, we will always have people willing to spend many thousands of dollars to have the fastest craft on the water and their race results will be based more on their bank balance than their ability.
For me, I have a family and mortgage and an ocean ski is not on the horizon, and whatever happens in ocean ski paddling it won't change what I can afford, but I get the same enjoyment of being able to race on my second hand, $800, 12 year old, 18kg spec ski as the guy I am paddling past who paid $4500 for his ski. Ok, maybe not the same enjoyment, a hell of a lot more, but its hard to see the grin on my face from behind.