@jszym Glad you enjoyed it and it's of course perfectly fine to disagree, my goal is to hopefully trigger some thinking!
Note that:
Bing having an API has helped some alternatives emerge.
It's impossible for anyone to make any kind of dent so long as Google is allowed to just buy the market. Everything in that post assumes that that has to change first (by legal intervention most likely).
APIs are useful as part of a bigger solution, notably that there is no other browser default.