Yes, the OP does claim authority, by stating his opinion as a plain fact, without knowing anything about it other than the publicly available information, and at the same time labeling a company that has raised 2.6 billion and has 100+ employees as complete idiots.

Good discussion would have ensued after a statement like "I wonder why they don't build out their own infrastructure because at this scale it is usually cheaper to...".

I could imagine that with this big a deal, they could get rate reductions that get the cost down to a comparable level to building out your own datacenters (at least 2) and hiring qualified ops people.

It might very well be a bad move, but you really can't say unless you know more.