Things do "evolve", but we get asked to share more blogs and start ealier when we can. We are still not super close to the patch at all with a way to go. But it's not a reason to hold vehciles that can be shown back when we can increase the blogs and their variety
Again, there will always be days without blogs Inbetween. That's never going to change. As I said, issues can come up last minute that means the Devs want to work more on a model or tweak something and other times things are planned with more space, depending on when they can be shown.
It's well established how things work now for some time.
Again "useless" is subjective. Every person and player has a different take.