I think there's bias in how closers are perceived for fantasy. At first glance I thought "wow, great job by KingKat to get a good young pitcher in Odorizzi and only give up a closer." But really, Jansen would probably go right around Odorizzi if we redrafted and possibly higher.
If Austin Jackson isn't going to run or hit for power or average, it'll be hard for him to amass value. Worth buying low on for an owner like KingKat though. Taking timelines into account, I think this is fair.
KingKat has owned Zimmerman in the past too lol. I remember I was ripped for initially flipping Zimmerman to Boxy for Beltre.