Was the deadline at 3:00pm Pacific time, this is the first I’ve seen of this trade and it’s dam near 6:30pm eastern.
Blame Lindros getting traded twice at the same time, the league instituted the trade call to avoid that from happening against. Mix in salary retention, salary cap, NTCs, etc and there's just boxes to check. As others mentioned, 33 trades in queue at 3pm EST. Each trade call might take 5-10 minutes to process and voila, we're still waiting for some details 3+ hours later.