How do you think she is getting exposed to liability by what the attorney says in public?
I know sabotage is a defense strongly mentioned.
You don't spell that out in advance. You wait to hear what other witnesses are going to say before nailing it on the church door, so to speak. He could have just said she did everything properly (which he did say - but which we know she didn't, so that was the first red flag and it will haunt her in front of a jury).
Of course it won't go to a jury with her, she has few assets, and they will settle on the blood from a turnip theory.
Lawyer pinned her down too closely to a specific set of facts that she might have "misremembered" or...whatever. But just wait to see what, specifically, she's accused of doing - at discovery. I realize he's trying to handle civil and criminal liability at the same time - so even moreso, he should have kept facts to himself.
Note that phrase "gained control over the guns." That means, after the shooting. Whose control were they in, if not HGR's in the first place and throughout? The Sheriff himself gave a conference at almost the same time, saying "There was complacency on the set" regarding weapons. So, the Sheriff is already directly challenging her on the points she's making. That's not good. Local are going to form opinions about her, a Hollywood outsider, vs. their trustworthy and very serious-appearing Sheriff, who also has a look of compassion and professionalism at all times.
She is absolutely certain she knows live ammo from blanks, but just a month before gave an interview in which she said it was the hardest part of her first job (loading blanks).
If she has direct eyewitness evidence of sabotage, that would be different - but since none has been produced, and it would be probably be illegal or at least ill-advised to refuse to give that evidence to LE right now, attorney should have waited until they were in court.
But sabotage does grab headlines, doesn't it? Either that's the ploy, or the lawyers are incompetent. They should have ridden it out a bit longer and made a general statement, not put their defense on display for LE to immediately punch holes in it.