I've read the post several times, I would suggest you do the same. He didn't say what you claimed in your first reply or in this post.
"Worked his **** off. Really good pressing ended up with 3 tackles and 4 interceptions.
Compare that with eriksen 1 of each, soldado none, chadli none, dembele 1 interception, Kane 5 tackles."
All he did was praise is work rate and effort. He compared his tackles and interceptions to other attacking players. He didn't say that it erased overall poor play. He didn't say those tackles and interceptions were worth more than the goals (or assists).
Nor did he in any way shape or form imply that work rate alone was enough to warrant his price tag or that Lamela has so far fulfilled his potential. Or that Lamela has been good enough for us so far.
He praised a Spurs player for working hard and putting effort in...