I completely disagree with you.
Most of Gundgans passes are either sideways or backwads (yes he is capable of some excellent forward passing - a delicate chip over the top last season in one game that led to a goal sticks in the mind - but more often than not he is a safe passer and thats it). You are correct in that he is an average attacking midfielder (and well below average when compared to what we have in the two silvas, KDB and fodden)
He doesnt have the energy or pace or tackling ability of Ferna (Ive watched him back out of tackles or go in half hearted)
He rarely if ever grabs games by the scruff of the neck......there may have been the odd one but it is rare and most of our poorest performance sunder Pep hae come as a result of him having a poor game....(along with Mendy) he is a massively weak link in our squad and if all our fit he gets nowhere near the starting 11