Of course rents would be cheaper if market forces are in the game.
It is simple, more builds, more supply, Tribunal of Social Justice needs to go out, so landlords are not loosing money.  I lost over 15K in one year  in rents that tenants will never pay. Tax man doesn't give a dime for that.

I would be able to reduce rents for at least 5% easy if there is no Tribunal and if tenant doesn't pay for 30 days cops would come for trespassing and evict them.

So this government and many others we had, has no idea what they are doing.
They want more government employees, more social cases they would spoon fed, and more problems of their own creation simply because that is electorate which puts them in place where they are.  They do not care about province of ON or citizens long term benefits at all.
Like it or not again facts are just facts.