So what's the bottoms line can I grow outside or not
There is no bottom line, Michigan law is still in fighting mode, meaning everything can be deemed illegal by our local governments and fought in court.
That case I posted showed no one is in agreement on what you can do indoors or out. So be careful and stick to not telling anyone what your doing. There are loopholes right now that will probably get you dismissed but is it worth it to have to fight it out in court, If your retired and have the time/cash and most important the will to fight it through, you can do what you wish.
good luck, Michigan will be trying to clarify the law and remove loopholes in the near future, the same thing almost all new laws go trough.