You skipped the first paragraph...
I read the whole thing.
"The USPP incident commander told us that at approximately 5:30 p.m., he briefed representatives from the USPP, the Secret Service, the MPD, and the ACPD in Lafayette Park on the final operational plan, communicating orally using his handwritten notes."
"At 6:16 p.m. on June 1, 2020, the Secret Service Exited Madison Place and Entered H Street Before the USPP’s First Dispersal Warning At approximately 6:16 p.m., c
ontrary to the operational plan and before the USPP gave the first dispersal warning"
"The USPP and ACPD civil disturbance unit commanders told us they were surprised when they saw the Secret Service enter H Street before the USPP had given any dispersal warning"
"The USPP civil disturbance unit commander, the USPP operations commander, and the USPP incident commander all told us that the Secret Service lieutenant later apologized for the early entry onto H Street during the operation but
did not explain why it occurred. The USPP officers we interviewed
did not know why the Secret Service entered H Street before the USPP gave the first dispersal warning"
The question as to why the Secret Service went in early, contrary to the operational plan which they were briefed on was not answered in the report.