It's not about how much absolute time this brush saves, it's how much it saves relatively in comparison to the status quo and in that way it is just 30 times be

It's not about how much absolute time this brush saves, it's how much it saves relatively in comparison to the status quo and in that way it is just 30 times better. If you deduct the higher costs and whatever you might lose some of that, but you will still be above the magic "10 times better" threshold that a product needs to be to beat competition.