This case is a isolated one from middle eastern origin (Jordan & Iraqi) PR. CIC is aware of certain nationals fraud history and they keep close eye on those country's PRs when they travel or apply for citizenship .
I don't think CIC will always be after self-employed people who has reasonable travels. One who is truthful and in fact living in Canada having family ties does not necessarily mean they are in risk of RQ. People who cheats CIC will always leave clues in their application data, passports and documentations.
When I traveled occasionally for business and family reason to my home country and when I entered in Pearson and faced CBSA agent, I noticed they aware of people to send for 2nd room for further checking and to face other CBSA agent and sadly they target mostly middle eastern PRs (sorry for people who is here from that reason), but its reality because of the fraud case they discovered PR from Jordan and Iraqi dual citizen.
CIC has their own way to determine from 100000s of applications who might be abusing rules and to judge between real people and cheating. It could be very negligent portion of people may take shelter of fraud. PR using hidden passport to travel (use 2 passport one for exit one for entry to manipulate their absence) is extremely difficult in online era. And even would dare to attempt, may find unsuccessful like the one got caught by CIC.
Bottom line is, large nos. of business people migrated to Canada in last 4 years with honest intention with their families and established residence and business in Canada. There might be 1 or 2 isolated case from certain nationality and CIC is aware of that and it does not mean all self-employed people with travel are in risk of RQ.