They're not going to DFA a consensus Top 20-30 MiLB prospect after less than 2-3 months of struggles at the big league level.
https://www.thebaseballcube.com/content/player/4623/
Joe Borchard spent 4 years going and down between the minors and Chicago, and nearly 300 at-bats over 100 games before they finally pulled the plug and did a "change of scenery" trade with the Mariners for LHR Matt Thornton before the 2006 season.