is it though? i'd argue that defensively they are still as vulnurable as last year, laporte is good but prone to misstakes, stones has shown he's not reliable what so ever, walker/cancelo are pretty much cut from the same cloth in that they are way to offensive minded for their own good. juventus got rid of cancelo because of all the costly misstakes he made last season, and ederson is uneven aswell.
mendy is made of glass, and zinchenko is still young and naive. middfield depth is unreal but attack wise? aguero is very injury prone, sane is gone for 6+ months due to acl tear, that leaves them with one forward in jesus (who is uneven) and three people who all predominantly play on the right.