The contributions of Guy and others have really improved the wiki docs. I don't think they should be restricted in this regard, having more users editing will bring up more topics where instructions are needed. It is often hard for us regulars to guess what is unclear to newcomers.
I am guilty of writing the page in question, yes. Perhaps the warning should be cat-sized. Perhaps it should be modified to have the extensions in an additional initramfs, in /opt/tce, to enable normal tce folder use.
But since the latter forces loading to ram, it is sometimes a bad choice on older systems. Maybe it would be best to recommend opt/tce as the default, with a note at the bottom pointing to these current instructions (renamed, so that existing links point to the better procedure).