Yes, as has been said , he thrives under pressure, and has dominated the end of the last 3 seasons, although he left it too late this season against a worthy adversary on the same bike as him who rode intelligently. Both he and Martin have crashed out leading on their own on a number of occasions in the last 2 seasons and that may be at least partly down to how the bike operates, or the bike in combination with the Michelin tyres at least.
As is my wont I place some blame on Rossi, the two dnfs due to crashes with the Marquez brothers were crucial at least arithmetically, and he needs to treat them as riders he is racing and take his own best advantage if contesting either of them rather than as the abominable Marquez brothers who require different handling/being put in their place as seemed to be Valentino's advice. MM in fact spent the whole season being very careful not to crash into him. He does seem to have moved away from a hardline Valeban stance of his own volition anyway.
I want MM to win the 2025 title obviously, but if he doesn't may the best rider win, and I have no problem if that rider is Pecco, although Martin would probably be my next preference as a fan. I did say before the last race that it would be to MM's advantage for 2025 if Pecco didn't win the title, and that was because I also thought the advantages would be with Pecco in 2025 for the reasons you say, which would have been more pronounced imo had he been the homegrown Ducati guy who had won 3 titles on the bounce rather than the guy who was just beaten by a guy riding for a satellite team. I doubt Gigi cared as much as some in the Ducati Corse management did about the latter however, his bike still won both titles and could hardly have been more dominant. If he was able to give Martin the same bike I anticipate MM and Pecco will have also equal bikes next season, if anything it might go the other way given that in the pits next to MM he looks like a Taylor Swift fan who got to hang out with her backstage at a concert. I am told Domenicali looks like he wants to ask for an autograph in MM's company as well.