I'm in favor of this. I've said this many times before elsewhere, but overpatching or frequent patching in competitive games is bad for the meta. Look at what's happened (and will continue happening) to Starcraft 2's kneejerk Dev interference. Many good players I know bring up the problem of its overpatching all the time.
In my opinion, a lack of further balance patches will help the low-tier characters the most, because players will have a chance to really work out their strats and techniques and discover potent new counterpicks. The top-tiers might slowly start to plateau or hit a ceiling with regards to new techniques because they're so overplayed, while the low-tiers will have lots of time to grow and find new exploits.