I'm in Canada as well, I will be on leave for 52 weeks and I plan to EBF for at least the first year, which means that having a pump would be nice, but not *necessary* (at least for now). Of course I'd like my SO to be able to feed our son as well, but even if it's covered, I'm not going to ask for a pump coverage, seeing as the manual ones really aren't that expensive, and I won't have a need for an electric pump. If I ever do, I can always buy a used one, and use brand new attachments, and call it a day.
I'm not big on insurance claims, I'd rather use them for *real* conditions and emergencies. I feel like enough people abuse our health system as it is.
Now if LO ends up in NICU or has a hard time latching for whatever reason, my tune might change.