He is not a dominate player. Defenses don't put 8 in the box against him often. He's constantly running against 7 man fronts, and he rarely ever takes over the game and carries his offense. He's good, really good. But he's not dominate. Derrek Henry is dominate. Saquon Barkley has been dominate for the Eagles. Robinson is dangerous. And don't throw stats out to manipulate. Josh Jacobs is right there with him and Jacobs isn't talked about as a dominate player much and the packers tend to face more 8 man fronts then the Falcons.
And the reason your stats are trash, is yes, Kyren Williams has 40 more attempts for only 10 or so more yards, but you're not mentioning how many of those extra carries came when the Rams had large leads late in the game, the Rams were trying to run out the clock and the defenses were putting 8 or 9 in the box to get possession back.