I don't think anyone is arguing that Donna and Wally weren't close, but I think it does a disservice to the characters to call Wally Donna's best friend with Dick standing there, but I am someone that would even put Donna and Dick's friendship above Dick's friendship with Wally probably. And I don't see them returning to their old relationship under Abnett's pen. Maybe if Doomsday Clock retcons the current stuff and/or brings back the old continuity then they might return to it, but I don't see Abnett being the one to write that if it happens. I feel like he is just on Titans because DC is just waiting to relaunch the title next year and needs someone to hold the title until then.
I strongly disagree with this. Abnett is one of the worst writers of Dick's character I've read. Nothing he did made up for how badly he has written Dick since Titans Hunt, and in the Special he continues to write him poorly. Dick is supposed to be very good at reading people, but he couldn't recognize that a woman was scared and chased her into an oncoming train to her death. Next he "stood up" to the JL and I guess this was Abnett's attempt at trying to fix how weak willed and spineless Dick was in Abnett's last arc when it came to the JL, but all that is immediately undercut by the fact the JL still treat him like a teenager, Dick agrees to work under their supervision in the JL Headquarters despite trying to stand up to them, and has no say when the JL puts Miss Martian on his team. All this after the JL continue to talk down to him like a child and throw how he let down and failed his previous team (which still makes no sense) in his face which he puts up no protest against. I understand what Abnett is trying to do, but it is all such a big joke.
I know you have been a big defender of the Titans series, and I have been a big critic of it, but while I think it is a positive step that the Titans finally have a mission statement it is all so poorly constructed. It is like he takes one step forward then two steps back.