I have no agenda about quarterback, but after looking at the stats, this is a VERY misleading stat.
Most teams rush for 100 yards every game except those who fall way behind early.
In any case, 100 rushing yards is not that hard to get when you consider 2 running backs, a quarterback as well as end-around wide receivers all contribute to that total.
I think you are putting weight on this like the old "When Emmitt/Elliott/etc. runs for 100 yards, the Cowboys win" type of comparisons, but this stat is not the same nor is it really relevant.
The idea behind a single player running for 100 yards is that the defense is playing well or the offense is scoring a lot so there is incentive to use up the clock.
Now if you said something like 150 yards or 200 yards rushing, that might make it more interesting.
For reference, here are the Cowboys rushing averages the last 7 years ..
2021 -- 122.0 yds/game (12-5)
2020 -- 111.8 yds/game (6-10)
2019 -- 134.6 yds/game (8-8)
2018 -- 120.9 yds/game (10-6)
2017 -- 135.6 yds/game (9-7)
2016 -- 149.1 yds/game (13-3)
2015 -- 118.0 yds/game (4-12)
Source:
https://www.teamrankings.com/nfl/stat/rushing-yards-per-game
Most teams will run for over 100 yards when you count rushing yards for all players combined.
Now, if you want to say, "the Cowboys win when <single_player> does this" then that is a more relevant statistic.