No it doesn't. You are misreading and misunderstanding. Read again and read the entire statement. The reference to the application received is the application to sponsor the NEW spouse - NOT the original application under which the sponsor became a PR.It's says here from the moment your application is received.
"The five years is counted back from the day on which the sponsorship application – as part of a complete application package – is received by Immigration, Refugees and Citizenship Canada (IRCC)."
Here it is with key parts bolded and underlined.
A person who became a permanent resident or a Canadian citizen after being sponsored as spouse, common-law partner or conjugal partner is barred from sponsoring a spouse or partner within five years of becoming a permanent resident, even if they acquired citizenship during that period. The five years is counted back from the day on which the sponsorship application – as part of a complete application package – is received by Immigration, Refugees and Citizenship Canada (IRCC).