I fully understand Pep's reasoning behind the formation and tactics, but I don't like it!
Football is entertainment, and that game was not entertaining, or even interesting.
Personally, I'd rather risk losing and try to win.
Also, moral might be slightly boosted with a point, but the message to the defence is that we don't think you can cope without two covering players in front of you, and the message to Foden, Silva etc. is that we don't think you're capable of breaking them down or tracking back effectively.
At least, that's my reading of it.