The Prima Pramac Racing team's move from the Ducati brand to the Yamaha engine brand is not about whether the Yamaha engine itself is competitive or not. However, this was triggered by the drama that occurred in the Ducati camp itself, where Ducati had chosen Marquez to be placed in the Ducati factory team even though Marquez himself had just joined the Gresini Racing team which also uses Ducati engines this season with a contract duration of only one season. .
This is what made the Prima Pramac Racing team disappointed because Ducati itself did not choose a rider from Prima Pramac Racing, namely Jorge Martin, who has been fighting for a long time in the team and was also the runner-up rider last season and is currently the leader of the standings. It seems that you don't read and understand enough about the dramas that are happening in several teams in MotoGP at the moment.