Sometimes I myself am not sure that I do.
My test was simple: on very small map (de_killzone - simply box) I have created 14 bots, each of them has been subordinated to my actions. And I drove them from corner to corner. Result: at cl_lw = cl_lc = sv_unlag = 1 - bots get stuck into each other at almost every collision; at cl_lw = 0 or cl_lc = 0 or sv_unlag = 0 - bots have never got stuck in each other, except for cases when boats have faced and intensively jump in a direction to each other, and that isn't often!