DRV425: Plane GND under DRV425

Hi.

First, sorry for my bad english.

I´m desing a new PCB with DRV425 sensor. This sensor measures a field magnetic < 2mT.

I have seen that TIDA-00463 desing does not put plane GND under PAD thermal. Is this to avoid magnetics noises from the plane GND?

What do you recommend me to do?, I connect the plane GND to thermal PAD or no?

Thanks for the help.

Regards!!