Yes and no. A lot of folks would be afraid to fiddle with their BIOS settings. Reading that step could scare some users off from trying—especially the sound of “disable ‘secure boot’”—but it's nothing a future Linux user should be scared of.
People shouldn't be afraid of technology, but we gotta come from a place of empathy—especially with people that are too old to have never gotten into PCs or now the younger generation who was raised on apps and mobile OS where even the file system is hidden, but really anyone can apply here. Linux, BSDs, et. al. should be for everyone. This includes easy-to-use interface for users with little current technical knowledge but also which means keeping some distros and DEs that don't belittle the experience power user.