I couldn't handle the confusion anymore so I phoned Revenue Canada this morning and asked them about the Canadian WTS' return and why they no longer show assets and very little donations.
The person I talked to was very surprised that the return showed what it did and she was almost positive that the 2015 return that is displayed on the website is in error. She does not think that the return posted is actually the correct one for the WTS in Canada.
She is contacting her supervisor and will be looking into why the return seems to be inaccurate. "Look back in about two weeks and if the return hasn't changed by then, contact us again". And "thanks for getting a hold of us as this charity is a very large and active one and I cannot see them making major changes without us knowing about it."
So...patience, Grasshopper...