So not that low. It's like if someone told you where to find Graceland. He lives in the Bridal Path, he hosts a ton of parties, and the changes to the house have made the news a million times. If I walked outside and grabbed someone at random I'd have a better chance of finding someone who didn't know who Drake is than finding someone who didn't know where Drake lives. His house is as about as well hidden as the CN Tower.
I can even point you to this place in Muskoka, honestly, and I didn't go looking for that information either. You cannot miss it. Drake is not subtle and he does not hide.
So morally, I think Kendrick is in the clear. He probably found it in the Toronto Star.