To be honest, even if he did say it and mean it as implied, I am not really fussed.
Seems to me that Pep is pretty unhappy with the weight of expectation that he's been lumbered with. He's regarded by many as being the best coach in the world and he comes to City - one of the richest clubs in the world and 2x recent PL title winners and everyone was talking about walking the league and getting to the CL final or winning it. No pressure then!
He's just trying to reign in expectations a bit, and rightly so imho. If we make top 4 and get to say the quarters in the CL, it will have been a solid 1st season. Anything more, is a good season. Next year, we'll expect (and we will get more). But for now, he's only just arrived and is just getting started.