The issue is, when doing sudo, you have to put in the password when doing sudo. In this case, you put in your password, some flag is set, the computer does a full reset, and then after it reads the flag and decides to bypass the password system. That sounds like just a step away of figuring out how to set this flag without a password to bypass logging in.
I think an issue is, this sets up your computer to have a way to bypass putting your password in on boot. If you don't care about security too much and don't have things like secure boot and encryption, then that's bypassable anyways... But otherwise, I'd be concerned about introducing systems that specifically bypass security.
literally completely accurate
I'm consistently saddened by the changing state of the English language 😔
Most likely... Unless the "destruction" was switching your MOBO between Legacy BIOS and UEFI, in which case you could break booting into both in one swoop ;D
I've had good experience using mkvtoolnix to mux video into an mkv with subtitles included. Not sure if mkv support is widespread, but as janky as the TV was with other formats, mkv worked great every time.
I also recommend rEFInd for the bootloader if you don't want to set anything up (and risk messing up). You don't need to configure your boot entries, it scans for boot options and shows them with a graphical interface, so your Linux and Windows should just show up.