Some people have already answered it here. However, there is a false narrative that keeps getting repeated. That Rog would have dropped Remco and continue to drop him had Remco never crashed.
At very best, one can wonder whether Rog would have been able to put in any kind of challenge at all in the third week.
Until Remco crashed, Remco had dropped/beaten Rog on longer, gradual climbs, on short very steep climbs and in the time trial. Basically, everywhere, but in short sprints.
And the fact is, once Remco recovered from the crash he was a match for and better than Mas, the rest of the way. it is unlikely that without the crash, Remco would’ve had any dip in form and likely would’ve beaten back any challenge fairly easily. He already had a commanding lead before the crash.