I wouldn’t say zero statistical case. He has 2 less TDs and one less turnover. Over 16 games they’ve played so far that is basically a wash.
And then if you try to put those numbers into context you’ll notice that Lamar has a HOF RB having one of his best seasons, while the Bills don’t have a 1k yard WR or RB this year.
So statistically basically tied in metrics that matter (scoring and turnovers), but with significantly less help.