As rymohr indicated, the author of the code given as example is actually the author of the article himself:

https://github.com/madrobby/zepto/commit/3d92f20966aa02dee82...

Which means the OP genuinely thinks that commits like this one are good practice, and the purpose of the article is to show how to deal with it.

Yet as it was argued above, commits like that should never happen in the first place.