The fact relies on the eligibility to apply for a study permit after arrival as stipulated in sections
215(1) and (2) of the IRPR.
Many temporary people residing in Canada do not fall under the definition of R215. Those people may still apply while physically in Canada; however, they must be careful to choose the correct application form. (Application made outside of Canada).
In my opinion, you get a bonus when it comes to the assessment of your application by the officer when you are from a nationality with a low visa approval rate, and you are
eligible under R215. Even The immigratic
scoring engine gives extra positive weight in calculating your score when you are inside Canada and meet R215.