Who Authorized the Fire Department's Destruction of 3738 Dupont Ave N?

Post by the Hawthorne Hawkman, video from Nicole Curtis Design on Youtube.

When the city of Minneapolis does really stupid things, like tear down 3738 Dupont Avenue North, they open themselves up to even more foolish allegations.  After the demolition of yet another property over north that a) didn't need to come down, and b) had a willing seller and buyer, North Talk and the Minneapolis Issues Forum are full of allegations of plans to displace, or that there is some "big demo" group behind house destruction and if we only follow the money we'll find the real culprit.  So in the same spirit, I will make my own assumption that may turn out to be foolish:

The owner of 3738 Dupont Ave N did not give permission for the Minneapolis Fire Department to conduct training at his property.

That prospect is one of the many things that bothers me about this house going down, but other preservation angles are already articulated elsewhere.  If I am incorrect in my assertion, the rest of this post can be dismissed.  If I'm not, then either the city has statutory authority to conduct non-emergency and non-administrative entry to vacant properties, or someone downtown authorized and coordinated the MFD training with zero respect for private property.

Why is this a problem?