I don't think Tesla is
I don't think Tesla is leaving 34 Niles of range on the table just to ensure people are not left stranded with an empty battery.
they provide accurate rang estimate based on your route, elevation, wind, traffic speed, and offer navigation to the closest superchargers on your route and even tell you how much you should slow down to make it to the charger if you are too far
I highly suspect this is a protection for the battery to ensure no car will face too much degradation and need a replacement under warranty.
BTW they also recommend charging to 100% the LFP batteries on a daily basis unlike li ion and sustain a higher charging rate over 80%. LFP seems like a very good alternative to li ion on standard range cars