My highly limited experience of yphoonte was that is was in a different league to the f3, if the JSF is 10-15 years down the line and we need something now what do we do. Ask Mr Put-theball-in to sell us some Migs??
If you buy a car, soon enough a better model comes along. What do you do, walk until the better model comes out them buy it?? six month down the road another one comes out and what do you do then??
Don't blame BWOS for all of it, share the load to HMG, MOD, the Airships (god bless 'em) and the stupid fat hobbits that wrote the contract.