As I've said in other threads, we can't stay behind forever. As of this October, 1.7 will be 2 years old; no, that wasn't a typo, 1.7 will literally be two years old!
At this point in 1.9 development, it's far too early to form an opinion of the entire update based on what's currently been released. Snapshots exist for a reason: to give people a peek at what's to come, and to get public feedback to improve things. Regardless, I welcome 1.9's combat changes with open arms - combat in Minecraft has been mostly stale over the past few years (especially with Mojang's less frequent update schedule), and it's time for a change. Because of how far out a release is, we can't say for sure what we'll do when 1.9 is released.