What lackluster reviews?!? I really wish these inaccurate statements would go away...
 
Critics rated it a 7.6/10 and audiences rated it a 4.2/5 on 307,000+ ratings.
Personally, I am hoping they never return to the Prime timeline. It had its day and that day is over (and I can watch that day anytime I like). Some folks don't like 
Star Trek Into Darkness and the Abrams films in general. Which is normal. Nothing is universally loved. But I don't really see how the numbers quantify it as anything other than a critical success.