I understand your point of view, but given the city is not a corporation but an entity that is supposed to provide basic municipal services to all of its citizens, services which it has struggled to provide due to a disastrous financial situation, I can't really agree with it. Detroit has struggled to provide such services for years now and just recently emerged from bankruptcy proceedings. It's not really in a position to just take what it can get when police, fire, and EMS response times are well above the national average and public transit can't meet its posted schedules.
From what I read in the article, at the very least Detroit needs to do a lot better job at communicating what is owed by property owners and working with them on payment plans. If the property owner can't pay, then Detroit should get whatever it can out of the property however the government sees fit.