I have to say I agree 100% with your statement above but I don't think you and I are the masses. when I got into wakeboats back in the day, everyone was upgrading SOMETHING but no one did it the same and the creative ways to get bigger waves/stereos/led's were part of the fun of owning a wakeboat.
fast forward to today and both the demographics of the wakeboat user and society today have changed. most today want a turnkey boat. if you have to add something, it's doing it in the easiest way possible. Skiers(and every other boat builder) know that bags are likely the only thing that most everyone are modding today and to have such a simple design "change" that, in the era of 200k+ boats, is pittance to change makes not a lot of sense to me.
builders have stepped up with heated crap everywhere, booming stereos that require nothing, multiple touchscreens and usb jacks all over a boat but can't fix one of the single biggest bitches with almost every user in the last 15+ years? doesn't make a lot of sense to me when the cost to skiers would be chump change at build time.