So, when the people in the DoD and the CIA say the exact opposite, and point out that at no time did they conclude or tell anyone that the ambassador was killed by a spontaneous protest crowd, you're thinking ... what, exactly? Weeks afterwards, when the administration was still sticking to that narrative, when every agency with info on the matter was telling them the opposite, you're concluding what, exactly?
Regardless, you're deliberately ignoring the concluding pages of the report, which point out the administration's culpability in ignoring the safety of the people deployed there, and the unanswered questions about the actions of the administration during and in the wake of the event. The report doesn't address why the administration continued to lie about the event for days and weeks after they had unassailable intelligence showing the nature of the attacks.
The report does, of course, express the Senate's considerable frustration that the State Department was preventing important people from appearing to testify, and thus preventing inquiry into entire areas related to accountability and the usual who-knew-what-when. They specifically cite a lack of cooperation from the administration, which prevented access to documents, personnel, and the answers to questions they wanted answered. They, the people who wrote the report you're trumpeting, say that political protectionism by the administration prevented discovery of basic facts about what happened before, during, and after the attack.
In short, the "flawed talking points" they identified were ... flawed. And to the extent that they outlined something known "at the time," we're talking about information that was formally revised only hours later ... not that the administration changed their pervasive lie on the subject for days and days, in appearance after appearance, where they continued on with the YouTube video BS. Something that everyone involved knew was crap before the sun set the next day. But you keep patting them on the back, and ignoring the bulk of the conclusions in the report you yourself trotted out.