BIOS updates via Windows Update are, as far I as understand, completely industry standard. Most BIOS updates are focused on security risks, and they shouldn't be skipped due to perceived inconvenience. The people rolling them out probably know more than you or I do. I would strongly suspect that there is a higher statistical risk of wrecking your computer or introducing malware by running a BIOS .exe than by using Windows Update.
BIOS updates via Windows Update are, as far I as understand, completely industry standard. Most BIOS updates are focused on security risks, and they shouldn't be skipped due to perceived inconvenience. The people rolling them out probably know more than you or I do. I would strongly suspect that there is a higher statistical risk of wrecking your computer or introducing malware by running a BIOS .exe than by using Windows Update.