The thing is, there's nothing wrong with an actual, nice-tasting brownie made out of actual chocolate, sugar, butter.
Yes and no. I was 100% addicted to sugary processed foods. There is nothing wrong with eating brownies sometimes, except for when you are breaking an addiction. I can and do eat processed sugar again now. But I've learned to recognise when it's an occasional treat that I can take or leave. And when it's becoming addictive. When it's becoming addictive it's better for me to quite processed sugar again for a few weeks and break the craving completely. These days I'm genuinely athletically fit and I can eat what I like. Not just because I burn so many calories but because the near constant exercise has an effect on my brain chemistry that has utterly changed my relationship with food.
There's just an issue if you're eating them every day.
Again, that's not true when the reality of sugar and fat combination addiction sometimes means that having 1 leads to having 20. When someone is in a place where it's genuinely just an occasional treat, then it's absolutely fine to have an occasional brownie but that's not always the case for us. And we need to recognise that.
I steer my clients well away from "healthy" baking. Food is supposed to taste good. No one in the history of the world has ever made a black bean brownie that tastes as good as an actual brownie.
Sorry but that's utter bullshit. The first "treat" I ate after quitting processed sugar for months was a brownie. It smelt absolutely amazing and I was sooo looking forward to it. And guess what? It was fucking disgusting. So, so, so unpleasantly sugary. I had to pile it up with raspberries and blackcurrants to make it palatable. It was genuinely horrible. And so are so, so many treat foods. They do not taste nice, they are horribly, horribly sweet and boringly devoid of other flavours. So no, a brownie made of beans, dates, cacao and egg won't taste as good as a regular brownie to someone who is used to high levels of sugar. But once your tastebuds are reset to not having constant, huge amounts of sugar, it is the healthy ones that will be preferable.