Balance of Nature has to pay for their extensive advertising campaign.

Freeze drying does preserve some delicate chemical bonds,
but low heat conventional drying is in all probability nearly as good.

Is it beneficial to eat more fiber?
Yes - hottest medical topic going right now,
“microbiome” hip new word.

Is eating more flavanonols
( formerly called flavonoids)
from plants good?
Yes,
also a very hot topic.

Fisetin, Quercetin and Resveratrol
are frankly amazing ( to me at least)
and there are many more “cousin chemicals” in the family,
and probably undiscovered flavanonols in odd not yet studied plants.

https://en.wikipedia.org/wiki/Flavonoid