Hard to say 100%.
But after veging for 9 weeks without flowering....
holy sh!t, they would be some huge plants.
Surprised they're only 6' tall, hahahahaha!
I've had plants bigger photos than that indoors after veging for just 3-4 weeks.
They may be BB after all, just some unusual pheno.
As I said, so many cultivars now are hybrids,
and they may not all be so stable.
So, sometimes weird phenos pop up.
Just roll with it, grow it out, learn to love it for what it is.