Honda actually revised that figure of 0.3s afterwards, saying that Stoner thought the bike could be 0.8 seconds slower than the factory bike. But that is presumably with the same rider, not Marquez on the factory bike and another rider on the RCVR. Marquez on the factory bike could easily put half a second on that gap to the proddy bike with another rider.
The bike was only supposed to be sold to challenge the independent teams who would be running Open. Not the factory prototypes run by the factory teasm and satellites. How could it - when it could be bought for 1m and a satellite bike costs 3m to lease?
Honda were certainly guilty of some mis-information when they were promoting the bike, claiming 0.3s (and even 0.1 estimate if the soft tyre available to the Open teams was used) But honestly, who in the paddock would have believed it? These people have been around racing for years and know better than most whether Honda were going to allow an independent team on a 1m bike to challenge their factory bikes. No chance.
The Aspar team admitted the gap was more likely to be near 1 second, not 0.3, but still bought them.
The bike seems to have done it's job and is quicker than the other independent teams. The fly in the ointment is the Forward Yamaha which is a full prototype, but which is allowed within the rules. So that bike can't really be used as a bechmark for the Honda performance. That bike is effectively what all factory bikes will be in 2016. Prototypes with a control ECU.
There will be no Open class in 2016. It will be interesting to see if Yamaha continue to lease that bike to Forward for 800,000 a year when the cost of their satellite bikes is significantly more, at the present time, for the same bike. And in view of the fact that it will be too close in terms of performance