Hey Caspar,
You bring up a super interesting point about companies that are able to branch into other areas, eg Amazon with AWS, Amazon Prime Video, Kindle, etc.
I think the difference here is Amazon has the capital to invest in creating these new sub-companies. This isn't even positioning a current product to different verticals, it's creating entirely new products for entirely different verticals and building a portfolio.
But at its core when you think about it, it's still buying and selling. The main value prop is still there - you buy stuff from them, whether it be books, server space, clothes, etc. It's definitely smart, but not a lot of companies would be able to expand like that with the right capital supporting these ventures. Remember at one point they tried to create a phone but it flopped - but that didn't exactly 'hurt' them in any way, they can keep creating these experiments and new products because they can. I don't think all companies are in that same position, for better or for worse.