It's not "the company" that makes such decisions, but some senior managers or directors who do. They don't see a penny extra in their paycheck for savings money, but they are on the hook if anything goes wrong with less mainstream tech choices.

I'm amazed any company pays AWS for servers. I can get if you're paying for a service like media transcoding, but to put it in perspective, AWS normal prices are now about on par with Hetzner's 5x-increased-due-to-the-crisis new price for new servers

Hetzner increased their prices a lot last month. It makes having hardware on premise worth thinking about again.