I understand, and I think you're wise doing so. I just wanted to share that, for what it's worth, I had a lengthy gap, then resumed paying tax in Canada like nothing ever happened. Even got a substantial refund the first year back. Cheers!
If you live and earn income outside Canada, you don't have to file with the CRA, period. (or at least I didn't for 25 years, then moved back and filed again with zero problem/questions about the 25 years not filing)