I don't think so, she says in the report she would do the same again. If passengers had evacuated and she thought she could pin the blame on someone misunderstanding something she had said, do you not think she might have done that? Rather than take the flak and say that she would do it again.
No, she initiated an evacuation and meant to do it. Loose cannonball.
As to another comment, she would have been at the front whilst pax were disembarking, so a quick shout through the door would have got the attention of the crew. The fact she acted on her own, without knowing the full facts really worries me.
There was no heat, or smoke. The only sign that I can fathom is the SMELL... yes SMELL of burning. That could be anything...oil, APU fumes, confused with Antiice fluid, air con smoke. Practically anything. If it's not immediately obvious then yes, get the pax off quickly, but no need for unnacceptable risk with slide deployment. IMO.