Yes. The 63 items listed in the report were very generic, top level summaries, e.g. “Redesign of pad deck.” There were three of them that dealt with the pad.…
Did any of the corrective actions involve the launch pad and complex?
I believe Elon stated earlier that the engines were not struck by debris. Any bits of concrete would have had to make their way back through the thrust of the 31 engines that were firing, and that doesn’t seem likely.My personal theory on the first stage engine failures was that they just got wrecked by overpressure waves and debris from firing into a flat cement pad (which was basically destroyed).
Aside from the couple engines that didn’t initally start properly, the report and Elon tweets? X’s’ mention that there were some fuel leaks that started a fire that cut communication between the flight computer and the gimbaling engines that resulted in loss of control. Also the hydraulics that powered the gimbaling of the engines leaked and caught fire as well.
The hydraulic actuators were replaced with electric ones on booster 9 (they did quickly so I think it may have been in the works before the launch) and they did some other things to stem the fuel leaks.