I mean, okay, we can all argue theoretical points that aren't based on an objective reality. "Kevin Garnett is a better shot blocker than Hakeem Olajuwon and Mark Eaton put together". Prove me wrong, but know in advance that I'm going to reject all statistical claims.
Why? That´s not what I´ve wrote. Is that sarcasm? Watch out, I`ve heard you get banned for that. 
Btw, I would never reject statistical claims. I would prove them false.
Your stats do prove something, but it´s not what you think they do.
The point is that KG is the one who the defense is built around. KG played to his strengths, and Perk cleaned up around him. Perk did the stuff KG couldn´t do (either due to skill, or simply because defense is played 5-on-5), and part of that is shot-blocking. That´s what your numbers support. They don´t say anything about the actual skill of a player.
His role in the scheme and these numbers are not necessarily based on Perk´s incredible shot-blocking ability, but on the fact that Garnett is more useful in a different role on defense, which is a theory my eye would support.
If you look at blocks per minute or % of shots blocked, Perk's worst year before this year, his rookie year when he only played 35 minutes, was as good as KG's best year. Every other year Perk's numbers were well better than KG's, including the three years before KG joined the Celts. Perk's shot blocking is *not* due to playing with KG.
If we want to keep this discussion going, I´d have to take on the role of devil´s advocate here, because I don´t want to argue against the statement that Perk is a superior shot-blocker to Garnett. What I said is that a) Roy´s numbers don´t prove his statement (even though I´d agree with the premise) and b) that his shot-blocking skill is not what defined our defense. KG is.
Let´s be real here. Perk´s shot-blocking is pretty much the only skill where he´s better than KG. Why this is even part of the discussion in a Krstic thread is beyond me, unless you use it as an argument in a "Perk vs Krstic" debate. To single his only skill out in which he´s better than KG and extrapolate a reason why our defense struggles, and thus, why we have to "blame Krstic" in the first place, is pointless since we
a) don´t have a large enough sample size of Krstic in green
b) don´t have a large enough sample size of Perkins in OKC (but we do know he´s inured)
c) have a better winning record with Krstic in the given sample size
d) can´t put a definitve value on shot-blocking in our defensive scheme
e) can´t put a definitive value on Krstic to our overall team output (either absolute, or in relation to Perk)
f) don´t even know what Krstic´s role will be during the playoffs
g) have an actual starting Center, Shaq, who was an even better shot-blocker than Perk during his prime.
There are more, but I think you get my point.