Why should they? They want to sell you the Apple experience, where iCloud is fully integrated. Integration into Android will be half backed, which gives a bad impression.
Microsoft failed with their Windows mobile strategy and uses a different playbook, trying to get everything in Azure, no matter the specific client.
Because it makes no financial sense for them. MS’s Office is ubiquitous and has a market beyond the borders of a specific OS. Apple’s solution isn’t nearly as competitive as Google’s or MS’s. It’s a “better than nothing” approach as far as I can tell. Even Google’s solution only competes because of the synergy with the ecosystem (Android), not because of technical superiority.
It’s similar to the reason MS stopped making a mobile OS.
And if you’re wondering, Google’s solution also integrate pretty poorly with the competition’s products, if they can get away with it. But in their case it’s not because it doesn’t make sense, it’s to force people into using G stuff.
Maybe this will change if Apple guarantees some privacy features but without solid technical features to compete, it’s still a tough sell.
unfortunate (but necessary) move, considering part of the reason it failed is because Google yanked support (and later certification of Microsoft's implementations of) Google services like YouTube.
It wasn't only the lack of Google apps mind you, but they do have a certain degree of kingmaking ability with whether they put apps on your platform or not.
Microsoft failed with their Windows mobile strategy and uses a different playbook, trying to get everything in Azure, no matter the specific client.