I feel that FELD would throw away video featuring/referencing BIGFOOT, but keep classic footage benefitting/regarding a truck/driver who runs for them now. (I.E, anything of Meents driving Monster Patrol, Pablo in Jus' Show N' Off or Gary Porter in Carolina Crusher.
They may not use it but I highly doubt they'd throw anything away. Whatever the differences between them that footage is irreplaceable and therefore worth something, if they throw it away it's worth nothing. Monster Jam has been bought and sold numerous times and may be again. It would be stupid of Feld or anyone else to devalue their investment over petty differences. Business is business.
Unfortunately, a vast majority of the old footage was destroyed by an apparently random PACE employee many years ago who deemed it unimportant. Rich Schaefer was able to preserve bits and pieces, but what I gathered from his post, most of it is long gone now.