Given the option I would also turn said unnecessary noise off too.... and the start up tune!
In my opinion the power is in having the option and choice. HMD/Nokia is failing badly on that count, a negative consequence of it's pure Android approach for the Nokia 8.
Yes I had this common enough problem with my Nokia 3. However, since upgrading to Android Oreo beta the problem has not occurred again. Prior to upgrading from 7.1.1, I was getting the Nokia 3 powering itself off at least twice a day and always when I plugged in the USB charger cable regardless of the actual battery charge.
I used the OTA upgrade from 7.1.1 to Oreo 8.0 beta 15 days ago and have been unable to reproduce the problem since then.