EFI can also live in firmware memory.
You can pull the linux drive, boot from the windows drive, and if one of the firmware updates was for efi, windows will trash the entry for your Linux disk.
This has happened for me many times, I had to use a grub rescue disk to rebuild the efi table.
Everything after season 5 is hollow, like the jokes are being written with a laugh track in mind. Its just not as clever. This season is no exception.
Consider Old man Waterfall defending Zoidberg: "I request a Satanic funeral." "Boooo!" This the culmination of a running joke about American freedom values to "do what you want, but not like that."
To season 6 opener: "Professor, my Fry-fro..."