I take it she's trying to make you so brilliant at "uni and beyond" writing that when it comes to VCE it's a piece of cake? In order to be a top scorer to you need to know the fundamentals. TEEL is a good place to start - it's simple and effective if you can control your arguments and express them in such a way that achieves a balance of subtlety, attention-grabbing (cliche in English, I know), vocabulary and complexity in your understanding. Looking back on it now it's easier to explain, but if you're good at the high end stuff, and don't have the foundation knowledge and basics, then in between your arguments (where the juicy parts are) will most likely be where your downfall will be. For example, you need a good opener for an intro, and a good closure for your conclusion. Those are basic things that, when you know your fundamentals in English writing, you can really work some magic. It's all about the 'feel' that the assessor gets the moment they pick up your paper and read the first sentence or two. So much weight is placed on those opening words because it makes such a big difference. Would an assessor be inclined to continue reading 100% objectively if your opening is riddled with spelling and grammatical errors? Unlikely.
And likewise, your 'linking words' or fillers that you use to shift from one point to the next is absolutely crucial. Be sure to have a nice variety of words to use at your disposal. If you can achieve these, then addressing simple prompt almost because instantaneous and you can write without planning (that is, you just pick up your pen and already have a good idea what you'll talk about and where things will be placed etc. It's kind of like having a virtual image in your head - you just have to keep your train of thought to let your hand catch up while it puts your thoughts to paper)