I'm in the bad camp... But as someone who did baby led weaning every food was a finger food, I didn't need to buy any specifically. Don't get me wrong, he had sugary foods... He had pretty much anything I had. We didn't eat crap as such, had a healthy diet, but if I had something sweeter, so did he. But I never saw the point in Rusks. A rich tea finger was smaller and just as satisfying... And I could eat one too haha.
What gets me is so many Mums would see a baby eating an adult biscuit, like the rich tea finger I mentioned as a bad thing and frown on it... But those same mums will happily give a rusk despite them being the same thing pretty much and likely loaded with more sugar.