It's important to note that the performances and abilities of professional athletes, including MotoGP riders like Marc Marquez, can fluctuate over time due to various factors.
That being said, as of my last knowledge update, Marc Marquez is widely regarded as one of the most talented and successful riders in MotoGP history. He has achieved numerous victories and championships throughout his career. This injury was a result of a crash during a race.
Recovering from a major injury can be a challenging process, and it often takes time for athletes to regain their full confidence and form. It is possible that the impact of the injury, coupled with the physical and psychological aspects of the recovery process, could affect a rider's performance. It is not uncommon for athletes to experience difficulties or setbacks after returning from a serious injury.
It's important to remember that professional sports, especially at the highest level, are incredibly demanding and require athletes to be at the peak of physical and mental condition. Factors like injuries, changes in bike setup, or other personal circumstances can affect an athlete's performance. It's possible that Marquez's performance fluctuations could be attributed to these factors.
Ultimately, it would be best to refer to more recent and up-to-date sources for accurate information on Marc Marquez's current performance and state as a MotoGP rider.