Twas an exaggeration.
Disagree, block hitting is very situational. It tight areas it is undoubtedly the way to go, on the other hand in open spaces it has its uses but typically loses to strafing.
Anyone who is able to hit the two buttons on your mouse can be an effective block hitter in close quarters, but only skilled block hitters can do it in open areas.
Every type of strategic PVP attack in MCSG has it's do's and don'ts, strafing is typically a bad idea in CQC, while blockhitting is just stupid out in the open. It's like getting a specialization in something. When you first start with your specialization, you can only make use in certain situations, but when you get better, you can open up your strategy a little, and use it better and in more situations.
Blockhitting, let's face it, you have to be REALLY good at it to knock strafers out anywhere. Any average blockhitter can serve a strafer CQC, but out in the open, I'd really only expect dying to Tomahawk in a situation like that, because you have to be so good at it.
My conclusion to this question: "Is blockhitting nooby?" is no.
Average blockhitter: Typically can only kill in CQC.
Pro blockhitter: Can kill amazingly in CQC, and fairly well out in the open.
Average Strafer: Typically can only kill in open areas.
Pro strafer: Can wipe out near to any enemy out in the open, and can be a fair match against pro blockhitters in CQC.
People have their opinions. I don't blockhit, I personally wouldn't want to waste so much practice, just to get good at something I'm never gonna use anyway, since I've already taught myself to be a par-strafer. But people choose what they choose, and either way, I can accept that.
So, my deep in response is that, blockhitting is not nooby.