This is somewhat akin to saying, "Are these the same programmers that had NO IDEA the dotcom bubble in 1999 would burst? If so I think I've had quite enough of their opinions."
Thats not to say that if they started from scratch there wouldn't be some unforeseen bugs down the road.
Which is sort of like writing code without ever referring to your specification, use-cases, and/or users, or in fact, compiling or running it.