He tanked it on purpose because he, like all good players not born in the state, didn't want to play in Cleveland unless he knew for sure LeBron was going to be there.
Certainly great judegement on his part to try to maneuver his way onto a team that stands to be mediocre for a long time, despite having no chance to go #1 anyway
Don't know if I'll ever get over Jabari apparently tanking his workout to not play here while the Cavs win 50+ games a season for the next 5-7 years tho