When it comes to market viability there will come a time at which companies just pull out because the headache is too much, even if they are somewhat profitable

When it comes to market viability there will come a time at which companies just pull out because the headache is too much, even if they are somewhat profitable. FWIW I think this is posturing on Uber/Lyft's behalf, but is almost certainly a sign of future actions if they cannot make the number work.