Some people will always complain with UI changes.
Some things are obvious bugs.
Showing HP/SP is an obvious improvement. Particularly for healers.
I think the drama and the fear of elitism is totally overblown. The lack of information results in just as much elitism now... some people don't invite you until they know you, or they look at myddo and reject based on outdated information.
If they show debuffs in the near future, that will be a huge help as well, although everyone should continue to be expected to clear their own debuffs.