Dovi might not be in the "alien group" but neither is Rossi.
Dovi had the factory ride at Honda and didn't exactly set the world on fire.
A good rider, but then Stoner got on the bike in 2011 and showed him how it should be ridden.
A factory ride is no guarantee of success, although it gives you by far the best chance.
Actually, this is a good time to let you know that there are no aliens in MotoGP. It's a complete ........ term that is thrown around with reckless abandon while ignoring that said "alien" happens to be on one of the best bikes on the grid. The last true alien on the grid was Casey Stoner. Marquez might be the closest to legit alien status, but it's hard to say since he is on the bike that provides 1:4 odds.
Agree with the first there are no 'Aliens' on the grid, that was Colin Edwards way of making light of the fact he didn't have the pace.
Even Stoner wasn't an alien, he was an incredibly talented and fast rider, but not an 'Alien', like anyone else he could be beaten.
The reason IMO that the factory bikes are locking out the top 4 positions is that they have the 4 best riders on them, simple as that. Back in 2009 Stoner was having his medical problems and in 2010 is Duc had big problems, Hayden was fast but never a consistent winner, even on the Honda.
Rossi and Lorenzo were the best Yam riders and locked out those top positions, I can't remember the full line up, but my point was that out of all the factory teams, only Yam had two absolutely proven race winners onboard, Duc had Stoner and Honda had Pedrosa, so there was less pressure on those top spots as there was less top talent on the best bikes.
Now Honda have Pedrosa and Marquez and Yam have Lorenzo and Rossi, all consistent race winners and championship winners. (Apart from Pedrosa). They're at this moment in time, probably the best riders on the grid.