David Kimura PRO said almost 7 years ago on Javascript Select Form Fields with Chosen :

That's strange that a lot of people have such complaints about Chosen. I've been using it for quite some time and never experienced any of the problems that they were describing. I had used Select2 in the past and have nothing against it. Both JS Packages just seem to work. :)

However, I do agree that this episode could have just as easily been swapped with Select2 with minor changes.