KANSAS CITY, Kan.—Daniel Suarez refused to get out of Martin Truex Jr.’s way and it ultimately ruined Truex’s race. Tyler Reddick did the same to William Byron, and Chase Briscoe held firm to his right to race hard when battling with Denny Hamlin. A conversation on driver code and on-track etiquette is raging right now in NASCAR, and with it comes a heated debate on the expectations of non-playoff drivers. If a title contender is trying to gain track position, should another driver clear the lane for an easy pass? It’s been a touchy topic since the playoff format was introduced in 2004. NASCAR, unlike any stick-and-ball sports, permits everyone to race in the postseason even if they aren’t in title contention. It puts a mix of slow cars and mediocre drivers on the same track as the superstars racing for the final trophy. With two races remaining to lock …