Why are there no ANA business class seats out of Japan via Velocity points?

I’m a points hacker who has successfully flown my family of 3 up the front several times to various destinations - Europe, Singapore etc. We are off to Japan for our first ever trip (excited) and I have successfully booked business class for the 3 of us to Tokyo HND on CX via HK using my QFF in Sept 25. I was going to book ANA BC for our return using my Velocity points either out of HND or NRT (don’t mind). My wife works in the airline game so we can come back to any Austn port. I am also happy for us to separate if need be - my son is 18 now. What I can’t find is BC on ANA out of Japan. It looks like the seats have dried up. We aim to return on or around Oct 13, 2025. I am using Seats.aero. I know ANA don’t release many seats a long way out (1 or 2) and release more seats 14 days out, but I can’t find ANY, using various dates. I did read an ANA article by Brandon Loo where I think he said ANA open up their seats seasonally? Like March/April release for travel from October? What are people’s experiences/thoughts on ANA BC out of Japan that time of year?