SpaceX had a very similar failure during a static fire test in 2016 that destroyed the rocket, payload, and a few key parts of SLC-40 that took them over a year to repair and return to service (September 2016 -> December 2017). The concrete flume trenches were literally melted.

https://spaceflightnow.com/2016/09/01/spacex-rocket-and-isra...

That was a full size rocket on a real mission with the $200M payload on board during the static fire, which is ostensibly worse. The payload was not integrated yet in Blue Origin’s case.