"As staed previously, Lowland Scots (Lallans) is one of the two academically recognised dialects of MAINLAND BRITAIN"

Or, more precisely, one of the two recognised by one leading academic, and quoted from a reference book in which the author has not the space to explore the topic thoroughly. You'll find others who are more liberal in their interpretation of what constitutes a dialect, and of their distribution within Britain. When I studied language at a (Scottish) university, there was certainly an impetus to view Lallans not just as a dialect, but as a language as distinct from Standard English in its lexis and grammar as Danish is from Norwegian.

Also, bear it in mind that, from a strictly descriptive point of view, so-called Standard English is in itself a dialect of the language.

And Kate Rusby is boring.