The 2021 world champion came together with the VR46 rider on lap 18 of Sunday's race, losing the front of his fairing, which forced him to pit for his other bike.
Marini escaped unscathed, while Quartararo went on to finish 15th of the 17 riders to cross the line, the Frenchman running as high as seventh at one stage having started last.
Asked whether the tangle was the result of a mistake, Quartararo told Autosport: "Well, it was not even a mistake.
"You know, when you are struggling that much to overtake a rider, happens to Marc also, but you are that much on the limit that you have to test many things.
"At the end, there are things that happen and unfortunately I lost all the fairing. It happens."
Despite running behind the leading pack, Quartararo does not believe he could have fought in the top five.
He reiterated his previous comments about the M1 struggling for grip, especially given the mixed conditions across the weekend.
Quartararo said: "I think the top five ended up super closely, so I think maybe considering the starting position a little bit better, I think I could have made a bit… maybe between Martin and the guys.
Source: Autosport