The answer is no and De Gea is still not a 'very very poor goalkeeper', there is no way that is true. He's had very very poor form in the recent past but the whole package is not poor, let alone very very poor.
The core point you've made in this thread about De Gea's shortcomings is a fair one, but why exaggerate in the way you have?
Because, as I've said many many times, it's not that he's average at the other aspects, he's absolutely awful, and in some cases non-existant, at them (and the stats 100% back this up).
Compare De Gea to outfield players:
Maguire is fantastic at winning headers but gets constant criticism because of his other weaknesses and how they affect the team/style of play, rightly so.
Pogba is a fantastic passer of the ball, but gets constant criticism because of his other weaknesses and how they affect the team/style of play, rightly so.
Ronaldo is a superb finisher (not in recent weeks though) but gets constant criticism because of his other weaknesses and how they affect the team/style of play, rightly so.
De Gea is a fantastic shot stopper, but gets constant criticism because of his other weaknesses and how they affect the team/style of play, rightly so.
There's absolutely no difference here apart from the fact that any time anyone attempts to point out De Gea's weaknesses (even though they are blindingly obvious if you know anything at all about football) they get accused of having some sort of agenda against him.
It's nothing personal, I just want the team to be as best as they can be.
I would love nothing more than De Gea to shut me up and start improving on these flaws but he's been here for ten years now and hasn't improved any of his weaknesses, so it's clearly not going to happen, therefore I think we need to replace him asap if we're serious about competing for titles and champions leagues again.