I don't think that is correct. The law itself, which is what the CIC website is based of off, says:
"(b) at the time the sponsor filed a sponsorship application with respect to the person under paragraph 130(1)(c) had been the spouse, common-law partner or conjugal partner of the sponsor, as applicable, for a period of two years or less; and"
So, you would have to be in a relationship that could have qualified you for immigration for two years prior to submitting the application. For example, if you were living together and had shared accounts for five years, then got married and applied 1 month later, the condition would not apply to you. If, on the other hand, you were dating for 10 years, but never married or lived together or shared finances or had a kid together, then got married a year and a half before you applied, then the condition would apply to you.
I hope that makes sense.