Zoella has got away with a lot because everyone constantly gives her the benefit of the doubt and sees her as some naive, innocent girl who has been corrupted by the big bad business people.
SHE'S TWENTY FUCKING SEVEN AND HAS BEEN IN THIS BUSINESS FOR A DECADE!
She is a year younger than me (a working parent with a 9 year old) and I would love to be given the benefit of the doubt she gets for making terrible decisions because "I didn't know" what people were doing. Ignorance is not an excuse and it doesn't mean you can absolve yourself of responsibility when things go bad.
The main issue with Zoella's range is that she's still marketed at the tween/teen audience, but is making products aimed at the adult market and with adult prices and the advent calender is a prime example of her "brand" being all over the place - how many tweens are bothered about a room fragrance, bauble and scented candles (or are even allowed to burn candles?!) and how many adults are bothered about a couple of cookie cutters, confetti and stickers?
If the calendar was aimed at teenagers it needed to have the usual 24/25 windows and be more in the £10/15 price bracket. With that price band nobody would have minded some of the crap gifts (confetti, stickers, notebook, cookie cutters) - if the other windows made up for it eg some of her beauty products (novelty shaped soaps, lipgloss, eyeshadow, perfume etc) even if they were only in mini/tester sizes. That way the crap stuff could be written off as little trinkets to "make up the numbers" to the 24 gifts with the beauty range being the main draw and worth spending the £10/15 to try out.
If it was aimed at adults and was going to have the £40/50 RRP then it needed to lose all the crap gifts and instead focus on quality items that adults would be interested in. She could have even kept it to 12 windows if the products are decent enough to command the price, since most adults would prefer quality over quantity. Lose the confetti, stickers, cookie cutters etc and just have the 2 scented candles and room fragrance that are already included and fill the other 9 windows with a couple of full sized items from her beauty range - a bath bomb, hand cream, body butter, lipstick etc - and her lifestyle range - hell she could even keep the pen, notebook & little makeup bag if they were together in one window as a little "stationery set" rather than spread out over 3 windows.