Personally, I don't see any issue with the heads with integrated necks that we're getting with the Trek crew. I prefer them as they're more natural and can be sculpted specifically to the character, as with McCoy's wrinkly neck.
I like all the Trek figures so far. I just like the ones from Scotty onwards less, due to that one specific tailoring issue I have with them.
Yeah while I tend to prefer neckless sculpts on my SW or Marvel figures that are in more dynamic kinds of poses, with Trek I tend to prefer the sculpted necks since those figures look best in museum poses. So I think Nanjin made the right call there.