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If the motor and inverter are both shorted, who's

 going to cry over a fusible link? Why be fancy when

 the rest is fried (per premise)?

If the FET drive is a high-peak amps CMOS / DMOS

type then there's plenty of stiff clamping by the

isolation diodes to the driver rails, and then if the

gate  were to be overvoltaged it would have to

be the bootstrap / aux rail run away, and then it's

likely any small size zener clamp would get fried

bond wire and fail to protect anyhow.

As usual my advice is to instrument it up and see

the real answers to your questions.