At a guess.
Technicolor has an r&d shop in Belgium where they "develop" thomson-brand "home routers", that are frankly atrocious. They get too hot, they crash when hot, they crash under load, they can't take non-default settings as that makes them crash too, the default settings are frankly insecure and have been for years, their ADSL robustness goes down with each fancier edition, and so forth, and so on. There's probably a few more GPL violations in there, too.
How I know this? By having been forced to use at least three successive versions of their hardware (and about six different boxes, most of them dead now, in a bit over a year) due to ISP lock-in. Luckily, no more.
This doesn't say why they withdrew. But I'd guess "incompetence".