IMO a witness who makes factual errors, and allegations that cannot be corroborated, is worse than useless, and wastes everyone's time. The evidence leaders should have sifted this out beforehand.
Its like a news reporter quoting "unconfirmed sources". There's often no smoke without fire, but this is a serious inquiry, with defendants who will use the full weight of the law to fight back...
She had to be at the enquiry because she was such a big part of the story breaking in 2016. She's been thoroughly exposed as incompetent/dishonest now.
I still can't figure out what is going on with her? Just dumb and naive? I can't see what she has to gain by lying.