These past few episodes (or actually already since Tom Keen passed), the series dabbled in making Liz a sort of Red 2.0 where they have tried to portray her as a person of equal skill and cunning. Save for a few exceptions, though, it quickly turns out that she is not, because she is unable to think ahead, to imagine the consequences of her actions. Nor is she willing to live with these consequences, as shows from her apparent change of heart after putting Red in jail.
This episode perfectly points this out as her actions immediately put someone she cares about at risk. She tries to do things the Reddington way, and just cannot pull it off at the first try, resulting in attempts to rectify her mistake for which she has to get help.
Many people seem to hate her for it, but I actually think its well portrayed by the series - it adds to the appreciation of Reddington: who he is and what he's capable of, and to how unique his skillset is. Granted the back and forth in her personality and allegiance is getting a bit annoying, it does not really hurt the series yet.