It's not really blindness... it's a trade-off I'd be willing to make to still own & have full control over the hardware I buy. Unless we can find a better middle way to achieve this.
Also, is Android as malware infected as GP describes? He singles out desktops, but Android does allow side-loading apps and people still near exclusively download apps though the play store. Adding a few other stores of big&trusted companies to painlessly load apps doesn't seem that risky to me. But would certainly add competition. I really don't understand why I must have a Google account to download Microsoft office.
Android does have malware distributed through side-loading but my objection was really the part I highlighted about “prevented from shipping an App Store with their OS”. If you don't have an app store at all the malware numbers will go way up because 100% of your users are going to be trained that it's normal to add stores or direct install apps and then you're going to see all of the shady download.com-style operations SEOing their way into people's search results, with fun variations like phone carriers pre-installing stuff which is ad-supported or the process of backroom deals.
> I really don't understand why I must have a Google account to download Microsoft office.
This is a related but separate issue: most of the value comes from trusting Google to verify that the app you found searching for “Microsoft Office” is actually published by Microsoft. Having a Google account saves you from having to manage accounts with every software publisher you use — which is huge for most people — but it's not really a prerequisite for user safety the way having a review step makes it a lot harder to spam popular application names.