It is largely a provincial jurisdiction.
Also, it's a matter of getting used to it. If you connect a 65-kilowatt machine on your wind turbine in the system, that has about the same impact on the system as connecting an elevator motor. Let's say someone comes in and says they're used to dealing with elevator motors so it's no problem, and they know it's not going to cause a problem when it's turning on and off, but as for a wind system, well, they say they haven't seen that before so it may cause a problem, when in actual fact it doesn't.
Any utility that has ever integrated these things will tell you that it doesn't cause a problem, but it's a matter of getting used to it, and largely that rests with the provincial regulator.