You make a good point, but I think there’s more to consider. The article says that having multiple hobbies can improve mental health, but it doesn't show that having more hobbies is always better. Some studies suggest that focusing on one passion can provide deeper fulfillment. Also, not everyone will feel happier with many activities—people with anxiety, for example, might feel stressed by too many. It could help to mention how personal preferences or mental health affect this. You did well pulling from a solid source, but adding more nuance could make your point stronger.