Maybe I live in some kind of Oramic-centric bubble, but I'm pretty sure she's better known than most of the other non-rockstar names mentioned. Her name gets 58,000 hits on google, and last time I went to the London Science Museum there were bits of her kit displayed there. She's not a household name, but I think the article's claims of her obscurity are exaggerated.
The BBC Radiophonic Workshop is more influential than they're ever given credit for, even now that the story is somewhat well known. And they were at the time too... If you're looking for 'pop' musicians who were influenced by those experiments in early electronics, check An Electric Storm by White Noise (band that featured Delia and Brian from BBC RWS), as well as United States of America's self-titled 1968 record. Both radical and timeless.
Not so pioneering, but Broadcast did some awesome stuff in a similar vein in the '00s, eg. https://www.youtube.com/watch?v=Og7m71xuFbA
The Science Museum exhibit would never have happened without that revival in interest.
She's still very obscure though. Most people who use sequencer automation don't have any idea who she was.