Indeed. It had just finished the boostback burn and jettisoned the hot staging ring when the divert was announced. I wonder if after the boostback burn they determined that there was insufficient fuel for a good safely margin when trying a tower catch.
The catch attempt is actually a divert - IIRC both Super Heavy and regular Falcon 9 first stage target empty space by default and only divert for landing once all checks out. :-)
