That point seems to have been lost.
If this deal gets done (it is dependent on Ederson leaving imo) then it would be interesting to learn why PSG and Donnarumma fell out. They have brought in another keeper. Donnarumma's Ligue 1 form reportedly slipped as well. I am not worried about this, as his quality was evident from the CL.
IMO City need this signing for 2 reasons:
1) Ederson's level has dropped, and
2) We need experience and personality in the team. I think that's part of the reason we miss Rodri when he's not there. We used to have 4-5 world class players in our team, or at least characters like Kyle Walker, but now we have Haaland and Rodri when he is fit. Players like Nunes, Rico, Foden etc might be very good but you also need authority and we have started to miss that personality factor. Other fans started to talk about our loss of aura, or fear factor, a while ago, and I thought this was a bit of nonsense but perhaps there is something in it?