It's open-source in the same way TiVo was "open-source" back in the day: yeah, you get the code, but you can't do anything with it in a practical sense.
Also, that article was published in 2013 and only received light updates in 2018 -- and its core arguments haven't really aged even with the additional five years.
Android is more definitely more user hostile. They’re both closed in practice. Heck, it wouldn’t surprise me if jailbreaking iOS breaks less stuff than moving to a custom android rom.
https://arstechnica.com/gadgets/2018/07/googles-iron-grip-on...
This article lays out in painstaking detail in one place most of the criticisms about Android you'll find in this comment thread.
And this was published in 2018! That Google still maintains "a better actor" aura despite all that we know now is the greatest trick they ever pulled.