Is the bind really creating a connection or just take note of the device id in a registration and then taking into account only advertisements of the registered device id? That is the way to get away from having to connect and still get data, assuming the data is in the advertisement.
TPMS has version bluetooth 4 and 5. Your's look like they are 4. But that's just from the outside look.
Interesting pub at https://www.amarinfotech.com/differences-comparisons-bluetooth-5-vs-4-2.html (print attached as .pdf)
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