If it wasn't the same future as predicted in the 70's, it wouldn't have been Star Trek: they may have thrown away all of the later canon, but they couldn't just start over... it wouldn't be the same universe.
Even TNG reimagined the technology of the future through the lens of the 80's and 90's, though. Holodecks, the Borg, Geordi's visor, Data. I think this movie could have been more forward-thinking.
I wasn't disappointed by the tech. To be frank, I think that they're simply giving themselves room to continue making money with rebooting other Star Trek franchises in the future
Just as an aside there's a hilarious Cracked post about how transwarp beaming obsoletes the Enterprise.
This is Kirk, Spock and McCoy, their place and point in time in Star Trek history is basically set in stone now. To change it would mean you are not making Star Trek any more.