Any glossary that starts out by trying to redefine the (industry standard) term "byte" to mean something other than the "minimally addressable unit of memory by the processor", invalidates itself from that point on. Just pissing in the wind.

As for "the Unicode bug", Unicode is the bug.

There's no point in rehashing the arguments, but one thing worth saying is that as long as people like you continue to try and rewrite history is this way, in an attempt to excuse the broken Perl implementation of Unicode, the longer it will be before we can get back to a world of sensible, sane, predictable and intuitively usable semantics.