Very common in India. And that article is from a journal that offers EAL news. EAL (English as an Additional Language) is not the same as ESL (English as a Second Language). EAL is favored above ESL among the language pedagogy community:
Why? Because sometimes it is not clear what an individual’s ‘first’ language is (perhaps they grew up speaking one language at home, and a different language at school). And because oftentimes people can speak more than two languages.
EAL is more inclusive and applies to “a wider range of individuals’ contexts”.