Except that they did sell, albeit at a discount. What I take from this is that suppliers still have no idea what price to charge for these items. If they don't move at £199, but sell in minutes at £99, that suggests the optimum price lies somewhere in between. Considering that Hatton's sold out of theirs at £165, it's not unreasonable to presume that Kernow could have made quite a bit more and still shifted their stock. But now they've set expectations at £99, who is going to pay more?
The same could be said of some other releases - the Bachmann Polybulks vanished in seconds at their original ~£30 price, but forum mutterings suggest they'll all be gathering dust with a second run at £60 a pop.
I'm not saying I could do any better, but then I get paid to create Internet phone services, not sell model railways. But I'd expect the people whose job it is to forecast demand and set prices accordingly to be somewhat more able than me - in many ways the future of RTR depends on it.
Mal