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TPS7A47-Q1: Thermal shutdown temperature point design

Part Number: TPS7A47-Q1

Hi Team,

My customer use TPS7A47-Q1 in his automotive project.

He use it in a 10Vin / 9Vout 500mA Max. load design.

Now he had a output keep short to GND test, need to make sure our device safety include the thermal perform.

He found that when he short Vout to GND, our TPS7A47-Q1 will enter a restart period, I assume that since the Thermal Protection.
But during the on/off period, the measure temp. on the IC case is about the 130C, it is over the Tj recommend range, this scenario will have risk right ?

Customer is wondering about taht our Tj recommend range is up to 125C, but why we set the thermal protect point at 150~ 170C?

Since even protect IC at Tj 170C that had been over 125C a lot, it could already have had a bad effect on IC ?