Just to clarify Urena has a salary of a 250k if he is in the minors vs. 1.25 million if he is in the majors. So if I am reading that right they really didn't guarantee him 1.25 million. My theory is with minor league options being reduced from 10 to 5 they essentially wanted a guy like Urena to hang onto for the first month that was going to be DFAed. The longer the Brewers can go without optioning a reliever the more slack on the rope they have in the second half of rotating guys in and out. Notice how the roster shrunk from 28 to 26 and the Brewers didn't send a pitcher down who has options. I am not saying Cousins has a fluke injury but it is highly convenient the Brewers didn't have to burn an option on Cousins, Gustave, or Milner for another two weeks.
It is also my opinion you treat Josh Lindblom like a Zack Godley. Preserve him as depth for an emergency situation if your starting pitching depth takes a big hit all at once. You do not want to add him to the 40 man unless you absolutely have to.