Yes, that is carpola. And, it opens the slippery slope for other cities to try to get themselves included.
But, as written, it would ONLY apply to the City of Detroit, since it's the only city in Michigan even vaguely close to 900,000 in population.
Wouldn't the joke be on this guy if this somehow passed and then next year when the official census figures come out Detroit has somehow slipped just below 900,000 population? I think it was somewhere just shy of a million in the last census in 2000.
As with most bills, it probably won't go anywhere. At least not for now. This session is almost over, and between the election and the post-election holidays and the new incoming legislature and administration, there won't be much of anything accomplished or moved along the process.