I think the click bait is assumed. The use of "this one weird trick" is humorous at this point (edit: and I found the article actually interesting/worth reading, the title not really deceptive, which is usually the main problem with click bait. and... yes, it is actually kind of a weird trick?).
To expend on your summary, this trick is necessary on Windows (only), because it does not allow over-committing and also does not have an OOM killer which you can instruct to kill content processes instead of the main process.
To expend on your summary, this trick is necessary on Windows (only), because it does not allow over-committing and also does not have an OOM killer which you can instruct to kill content processes instead of the main process.