The request if granted will be good for you I think, since you won’t have to explain any further to the Visa Officer about the wicked duration of your course.
So I think if you draft a very clear letter of explanation stating that since childhood you loved the idea of CGI etc and watching sci-fi movies, furthermore getting curious & leading to a deep fascination towards the concept !!! Then you can say: so anyhow to excel in the field due to lack of exposure & resources till your 12th standard, you had to go for a certificate course in order to create a base for your future aspirations (in order to qualify yourself to get an admission at some degree level program you had to invest in a certificate program) … so now that you have the certificate you have become well rehearsed to meet the rigours of the program. Also, don’t forget to mention about the scope of job opportunities back in India based on your diploma from canadore (how big bollywood is and how much the big banner movies are investing on VFX these days, talk about the massive growth of our Indian film scene !)
All the things that I said above are just my interpretation of it but the final decision has to come from your end, you know what you want from the course and why you took that path, so make sure you convey everything cleverly from a study permit’s perspective !!!
Additionally, I will also like to ask: isn’t it possible for you to file an application through SDS (as I reckon if you file through SDS the financial part can be simplified if you simply get a year’s GIC & pay first year’s tuition fee, moreover attaching bank statement as well to convince the visa officer that you can support your studies for the second year as well) ?