What bothers me some is that Doncic didn't have announce he wouldn't work out. As long as his team is playing in the tournament no one would expect him to come over for a workout but were his team to get knocked out, then they'd certainly expect it. Maybe he's so sure his team will be in it until the end, he didn't think he was closing off any reasonable expectations. If they do get knocked out and he still won't come over for some workouts then it's reasonable or hold it against him - and even suspect he is hiding something.
As it is fairly likely Real Madrid will be there to the end, we ought to send a scout or two over to watch him live - assuming we do have a serious interest in drafting him.
Frankly the only circumstance in which I'd be happy to draft Doncic is if we hired Igor K, and he was adamant about it - with reasons.