That's not a failure of the rocket. It's just the operator of the primary mission calling the shots, and the secondary mission suffering as a result of that. That's the sort of risk you assume when you piggy-back on the primary payload when launching on any rocket.
Having a launch option an order of magnitude less than what exists at the moment is pretty important - it means people can build and launch two satellites for the same price.
Planes are so safe today because every failure worldwide increased the regulations for all planes so this can never happen again.
They have a head start, they were able to learn from 66 starts. With every launch SpaceX does they get more reliable.
Right now probably Lockheed, in one or two years SpaceX.
Incrementing the successful launcher counter from 0 to 1 is a huge step. Demonstrating the reliability they've shown with Dragon is another huge step. Lockheed is either concerned (and making plans to remain competitive at a much lower price point), or they're stupid (I'd guess it's the former...)