Just my opinion, but I think it is great to let kids explore their interests and passions. Teachers tend to want all kids on the same level, as that make their jobs easier. And may even reflect on their evaluations based on how the kids do on standardized exams. But in reality, kids are all over the map, especially at the early ages.

While it is always worthwhile to maintain a positive relationship with teachers, I would encourage you to follow your own parenting sense.