I think that she is not given enough allowance for the fact that she was given fairly complicated long winded instructions for the task while still feeling the absolute blast of entering a house full of people all shouting and laughing and hugging and forgetting names. Remember as well, she is in the fashion world, arty and an imaginitive flights of fancy type, not a calm analyst problem solver.
In my opinion she is the first BB housemate ever who has gone in part way through who has a good chance of winning. Freddy is the best game player ever but if he makes mistakes once Bea is evicted, then Hira might become favourite.
Also, it is plain that it will not take long before Bea turns her venom on Hira which will cause a monumental backlash. Noirin was the queen bee and ripe for Bea's hate whispers, but Hira is a kitten in a house where they like kittens and is a Bea trap. (Apologies to Raymond Chandler just in case any book readers are BB followers).