I understand your point and I even agree with it.
However, the law applying to the French police force, after the 2017 terror attacks, specifically allows use of firearms against drivers who flee traffic stops, even if the officer(s) are not under immediate danger.
Now, if the police has to, as the situation develops quickly, start weighing possible consequences of letting or not letting a fleeing car go because of the driver's possible ethnic background, age, etc., they WILL certainly play it safe and not do anything, if the consequences of a wrong decision for the officer and/or their family end up being economically catastrophic.