Who said he cannot sponsor his family? I have plenty of friends who are not RO compliance but still managed to sponsor their families. As long as he is inside Canada, he can starts his sponsoring process.
Valid PR status is an eligibility requirement to sponsor family members for PR.
A PR in Canada can indeed start the sponsoring process even though the PR is not in compliance with the Residency Obligation, but that risks triggering a formal RO examination (to determine eligibility to sponsor), which can result in a 44(1) Report for inadmissibility and being issued a Removal Order. If that happens, that is a decision terminating the PR's status, subject to appeal.
Whether or not a particular PR in breach of the RO is referred to admissibility processing, when they initiate a sponsorship application despite being in breach of the RO, appears to vary widely. It seems to depend mostly on factors like the extent of the breach and the extent to which the sponsor appears settled now in Canada (as evident in the sponsor's information in the application, including employment history).
It would be little or no surprise that there are numerous anecdotal reports from individuals who gambled, took the risk, proceeded with the sponsorship application despite being in breach of the RO, and were, as the saying goes, "
OK." That does not change what the rules actually are. That does not eliminate the risk for the next PR who might initiate a sponsorship application when in breach of the RO.
One might attempt to do what gamblers do, and more closely examine the odds, assess the probabilities, and perhaps take their chances, place a bet. They should understand what they are gambling for, what is at risk: losing status to live in Canada.
I have done the gambler's thing many times in life, in other contexts, and I have do so very often on the Queen's Expressway, the 401, and the Trans-Canada, fully cognizant of what the speed limit is and choosing to take my chances and go faster than the limit. Only risking a speeding ticket, however, not losing status to stay in Canada. Can say it went "
OK" (but I should add, "
so far") many, many times, while witnessing scores and scores of others likewise more or less breaking the rules, risking getting a speeding ticket and having to pay a fine and higher insurance rates. As often as I have seen scores getting away with breaking the rules, there is no doubt about what the rules are, and what enforcement can mean.
For the PR in breach of the Residency Obligation, it is usually (by a big margin) better to avoid engaging in a transaction with CBSA or IRCC that could trigger a formal RO examination and calculation. That includes avoiding taking the risk of losing PR status by making a sponsorship application, which can be done by waiting until AFTER getting into RO compliance. We know what the rules are. We know how they can be enforced and what the consequences can be. Just because some get away with it, does not justify suggesting it is OK, because depending on the circumstances, there is a real risk it will not go OK.