I'm not sure he was dead against it, I think his theory was that a well balanced 2lbs 11oz bat is just as manageable as a 2lbs 9oz bat. This was probably to encourage people to go a touch heavier, as it's very difficult to hit 'specs' for customers at lighter weights. You'd be surprised (or maybe not) at just how many requests you get for certain crazy specs at light weights
I'm sure he's always made bats at lighter weights, just didn't promote them as much. The ones he's pushed recently in his 'shop window' videos have been lighter as these generally sell easier and they're pre-made, so not people specifically requesting 40mm edges, 67mm spine, blah blah etc etc, as they what they are