I have been doing some more reading about the CRA's rules for charities and non-profit organizations. There has been some recent changes to ensure that these organizations are actually not for profit.
In previous years, the KH loans were reported as "Long Term Investments" but have now been converted to "gifts to qualified donees". There is a tax related reason for this change.
The CRA considers long term investments as profit making ventures and therefore not allowed for non-profits under Canadian tax law.
An overly-large reserve might also indicate the NPO is accumulating for inappropriate (i.e. for-profit) purposes.
A common ‘inappropriate’ purpose is the intention to earn investment income. Interpretation Bulletin IT-496R opines that using accumulated funds for long-term investments is ipso facto a for-profit purpose, taking the organization outside of the scope of section 149(1)(l).
This would explain why, on the 2014 tax return, the long term investments have been reduced so significantly and subsequently, the reserve is much smaller. The WTS was forced to make this change by the CRA. They were likely censured for giving out loans as a profit making venture and, if they hadn't forgiven the loans, they could have lost their tax exempt status.
And now you know why Sophie can't have ice cream - the Tower Daddy lost a whole bunch of that re$erve they had.