They also NEED to buy BCE as it is a cash cow which will allow them to pay out their pension shortfall:
In 1970, there were 10 Ontario teachers working for every one retired. Today, there are only 1.6 on the job for every pensioner. That shift, combined with the fact that teachers are living longer and are retiring earlier, has forced the fund to re-evaluate earlier actuarial models that predict pension liabilities. By OTPP's estimate, the current contributions and investment returns will not cover future pensions. Next month, they must parse the assets and explain to the pension regulator how they plan to fund these future liabilities.
"Teachers have more than enough cash to buy BCE alone."
How is life in lalaland? Yeah sure, Teachers with $110Bn in assets, most of them already invested, would sell half of it at a big loss (most are down) and would invest half of all their money into one company, against the 101 investing rule of diversification.
Financials or reality is obviously not part of your life.