I agree pass pro has some affect on a RB's playing time. But different coaches/coordinators have different tolerance levels.
IMO there's a much wider range of RB's who actually play. There's plenty of good runners (not great or elite) who are bad in pass pro that still play a good role for their team.
PFF ranked 140 RB's in Pass Protection in 2025
Here's all the RB's that played 150+ snaps and didn't crack the Top 100 (and where they rank)
IMO these are all below solid/average pass blockers, but a wide range of talent levels that played a sizeable role
100 - Aaron Jones
101- Kenneth Walker
102 - Devon Achane
103 - Ashton Jeanty
105 - Bijan Robinson
106 - Kyle Monangai
108 - Treyveon Henderson
109 - Chase Brown
111 - Ty Johnson
114 - Jordan Mason
115 - Rico Dowdle
116 - Ollie Gordon
117 - Alvin Kamara
118 - Sean Tucker
119 - Dylan Sampson
121 - Bucky Irving
125 - Quinshon Judkins
126 - Brian Robinson
127 - Omarion Hampton
128 - Tank Bigsby
130 - Cam Skattebo