"The user gets a flash guide and that's it."
And for that, some people need a few days to learn.
Actually, it took me two days, many years ago.

It is not clear to me why the pessimistic reactions.
I don't see any serious counter arguments for that.
I also rarely use multiboot, but I have nothing against there being such a possibility.
Let's say I can try other images or maybe they have some addition
or the plugin that doesn't have an image that I use the most.
e.t.c