I don't agree with bumping the metropolitan minimum to 100k. 75k would be a reasonable compromise.
Are there particular metros in the 75K - 100K range you think should not be dropped to micropolitan status? Note they will still be MSAs, just in the smaller category.
I see some in the article I wouldn't want to move, but they used 2010 data and many of those on their map have grown this decade. For example they show Twin Falls ID, but on closer inspection it had 99,987 in the urban area and has certainly picked up at least 13 people last decade.