I think this is quite right. Sarri hasn't had an A+ season with us. He has gotten the team to do a 180 in terms of playing style. I never agreed that Conte was as defensive as most made him out to be but this is the kind of football the owner wants and he had to know from day 1 under Sarri that it's going to take more than 9 months to get back to the top playing this way.
The state of us before Conte left was frightening. Players seemed to hate playing his way and 1 even blocked him out of a picture. We finished outside the top 4 under him as well and you'd have bet this season would be worse if he was still in charge.
I'm not sure it's encouraging to point out the amount of times we've hit the woodwork since it's pretty damning of the finishing, something like 18, and play the what if game but if even 1/3 of those go in the narrative does change.
Sarri is slowly learning/adapting with his tactics and his subs. I for one would like to see what he can do with a full summer of prep before sacking him. If it's more of the same come October or November then by all means get rid of him.