That's not what he said at all.
A figured neck is inherently less stable than one made from non-figured wood.
He clearly states that only stable figured wood survives the roasting process - ergo, it was a stable piece of wood to begin with, and had been further stabilised by roasting.
That's why he's now able to offer figured necks.
EBMM used to use fantastically figured wood in the 90's.
I'd initially assumed that those stocks had dried up in the last 15 years - but evidently they elected to make the necks as stable as possible, for the benefit of the primary purpose of the instrument (cosmetics taking a back seat), and have taken this further by now roasting the necks as standard.
Of course, the "Classic" line still offers non-roasted, highly figured necks, if that's what you want.