Market share is EVERYTHING to a smartphone/mobile ecosystem. Every single app maker that makes up your os is looking at this report and using it to figure out where to release their next app first.
That's weird... Android has 70% smartphone market share to Apple's 20%
So why do developers prefer making apps for the iPhone?
That's the complete opposite of your claim.
Android has 70% market share... but a lot of that is made up of crappy $100 phones in lesser-developed countries. You can't even access the Google Play store in China!
Developers go where the money is... and that's still iOS despite their lower market share.