Firstly, this is absolutely not DDGs best ever season. Not even close. The number of goals he has been at least partially at fault for has been ridiculous. He is nowhere near "his best" and has been a big problem in our team but people seem to think jumping around is all it takes to be a goalkeeper, as shown by the ridiculous "highlight" reel put together for the PL player of the month video. Reminder in case you haven't seen it: Neves looping volley which would be a basic save for anyone taller than 5ft 6, Buendia header which is straight at him, two shots from Jenson which were terrible finishes and a header back at our own goal that was going wide. What a terrible month of football is those were the best moments of the best player in the league that month.
The second point I take issue is the "nobody would have been crying out for us to sign Dean Henderson as our next #1 off the back of one good season in the PL" comment, as it is ignorant to all other levels of English football where he had been exceptional in loans in each of the three seasons prior as well. So in essence if a young player has excelled in successive seasons in League 2, League 1, Championship and then the PL then yes I would expect Manchester United to be looking at them as that is a remarkable level of progress.
You have clearly misread my post. Henderson made a couple of decent saves (that you would expect him to make, this isn't praising him) on Friday - DDG has been given MOTM for less this season and had everyone on here saying he'd "saved us" for making saves no better than those. Its a double standard.