Moving from canada to finland

[Pursuivant]

they seem to be full-on bachelor's degrees that should be transferable

You seem to miss the part where one should check the "university" master degree entrance requirements. You can not get onto "university" masters course on a "polytechnic" (university of applied sciences) bachelor degree in Finland - or you can if you do all the theoretical bits like 2-years worth of a "university" bachelors. Polytecnic bachelors lead only to polytechnic masters degrees.