@grislybutter from my understanding Fyne was founded by many ex-Tannoy people, and they brought with them many years of speaker-making expertise with a modernized design. Many of their models are quite similar to Tannoy offerings in design even - probably for good reason.
Tannoy has, in recent years, moved production to China, which has been received pretty poorly overall in the hifi community from what I've gathered. Fyne are made in Scotland.
From what it looks like, it seems Tannoy is stuck in the past with not much innovation going on there at the moment, with cost-cutting by moving production to China being a bit problematic. It almost feels like they're just riding on reputation now, whereas Fyne took the Tannoy experience as a launching point and ran with it.
This is just what I've gathered and as far as I understand, but I could have some gaps in my understanding as well.