The casino closed when...

"U.S. marshals entered the casino Jan. 9 and seized more than $1 million in cash for the Culinary union's health and pension plans."

Maybe the Union thought putting everyone out of work, and having the casino close, was a better decision than hoping The Horseshoe would come up with the past due balance?

Or maybe the Union didn't think the $1 million would force the casino to close?

Without any blame or judgement intended, the casino closed because the Union had the $1 million seized, not because the owners planned a closing.

Does it look like the action by the Union backfired or was actually protection against losing the $1 million, plus the jobs, someday soon?