Maybe there is an untapped market? I remember when "BASIC stamps" were a big thing..
That might be some of the market.
My retired-teacher relative worked with children with various learning difficulties, and continued to use educational software on a BBC Micro well into the 2000s.
She said the comparative simplicity of the graphics and interface made it significantly more accessible for many of these children.
There were also special peripheral interfaces like this  which were no longer available (or maybe were significantly more expensive).
The micro:BIT is probably the current version of the BASIC Stamp .z
Hmm. Mode 7 is certainly neat but a big draw with BBC BASIC is the ease with which the other modes that do support graphics can be used and, of course, sound. For example, there's a crazy version of Axel F written in BBC BASIC out there somewhere.
(The other really cool thing is the BBC Micro had a built-in assembler so you could embed assembly language directly in your BASIC program.)
Mods, perhaps it's better to change the submission link to the list of BBC products, https://www.bbcbasic.co.uk/products.html .
For example, I can access the bbc.co.uk from the command line, retreiving text-only versions of the articles.
Except if your browser is on a mobile device!