Bro u r right to one extent, however, as long as u r a canadian citizen, u have leverage, u can go be with ur spouse heck u can even apply if u r not even in canada ur self (read the immigration forms first, there is a whole section on it) as long as you can show strong ties or that you will be coming back to canada, thats all that counts... In this particular case she went for 9 came back and is working... No harm done... At the absolute worst she may get a second look at her case, but nothing to freak about. Although I do recommend ppl to play it as safe as possible, the less moving around(address change), or travel u do during ur sponsorship process the better...
If u as a sponsor are a PR card holder, then u better stay put in canada, as u have to remain here, although can still go visit ur spouse for 10-12 day stints once a while....
Please dont scare members without full knowledge... The immigration forms themselves reveal a lot of do's and do not's...