Everyone has to walk on eggshells around anything that might affect the Google search deal, but that's mostly it. If anything the Google money is resented, even though it also funds everything.
IMHO leadership always lacked imagination around Firefox, and never had the fortitude to back any alternate investment enough for it to succeed.
Servo does not, even if finished, turn into a self-supporting product. Keeping Gecko going already is a huge challenge for Mozilla.
I don't have a lot of faith in Mozilla leadership's ability to compete, but it's certainly not that they don't want to try to compete.