I recently got my PR card renewed. When I applied, I had just enough time spent in Canada to meet RO. Now, I have to leave the country for a few months. When I come back to Canada with my new PR card later this year, I won't meet the RO requirements.
I don't disagree with the points above, but details matter - most specifically how long you will be away and how much out of compliance you will be.
-Math: when you applied, you had just enough time. Then you got your pr card after ... 60 days? Now you want to leave for ... 60 days? How many
days are you going to be out of compliance? *
Because while all of the above is, repeat, true - it's going to look quite a bit different if you are one
day out of compliance vs one year. And I think many here would say that even 60 days is generally not a compliance issue the CBSA officers are going to bother with (which is, repeat, not a guarantee - just an observation). All things being equal.
Next, if they do decide to look into your non-compliance, you will (must) be given a chance to state reasons (that may be considered for humanitarian and compassionate consideration - or lenience, if you will). This is also going to be evaluated in the context of the length of the non-compliance ("I didn't feel well and didn't want to flyand took a while to rebook my flight" might be very good for a couple weeks, not so good for a couple years).
While there are probably some cases where it went as far as revocation of PR status - I'd guess that there are not very many where the extent of the non-compliance was less than, say, 90 days (or at least very few without some other story behind it (like previous problems with IRCC).
That said: there are a lot more where the intent of the PR was to leave for 'a couple of months' and then ... things happened, and years later they have more serious issues with their PR status.
Point being: there is some risk. It may or may not be large, but does depend on circumstances (that are only really known to you). Only you can decide.
*Yes, I'm aware that if some of the days from before were from period right after landing, some days may be dropping out of the most-recent-five-years calculation. Just illustrating.