The lack of that specific information doesn't make it vague in my view.

If I tell to that the world appears to be shaped as a globe then that statement isn't vague just because I don't explain _why_ it appears shaped as a globe.

This isn't some abstract argument about your view of the world. This is a blogpost about a potentially very serious system fault. Customers want to know what the root cause of the fault was, so that they can evaluate whether to continue to do business with the company or not. It's very cut and dry.

It's vague because we don't know why you consider it to appear to be a globe. Did you fly in a rocket and saw it or do you just think that round is the perfect shape and God wouldn't create the world in any other way?

That's not what the word vague mean though. If you make up your own definitions of words then it's not worth discussing with you.