You could always sculpt over the entire body if it makes you feel better.
Statues may as well have moving part's , the only reason they don't I'd imagine is because it's not possible to do so without showing joints. All it does is allow for different poses which is always a good thing imo.
I completely disagree that it's a waste of talent for Trevor to be working for sideshow on figures ( or hot toys ). Just look at the work he's producing for them !. He's even made a few figures himself so if he enjoys it even better.
I've also noticed when people have looked at my collection they are usually always impressed with the figures much more than the statues ( apart from the life size busts I own ). The 1/4 Enterbay Terminator is a prime example of this.
Like you say it's all opinion at the end of the day but to not consider the amazing figures we see here everyday adult collectibles but a statue that could completely suck an adult collectible just because it's fully sculpted doesn't really make much sense to me personally.