yeah for sure it helps keep fresh bud fresh,
but lets pretend you just bought 4 ozs of already cured and ready to go bud that hasnt been in the freezer. I believe he dusts his, then freezes it, then blasts it. I imagine within 1 minute of blasting the weed has changed temp so much (either warmed or cooled more) that the freezer part is irrelevant? me and twitch have totally opposite techniques. he freeezes his bud then shoots the outside of the chamber with a temp gun, I just use room temp bud and frozen butane with a temp probe.
I think the main deciding factor is the starting material, and how much ya got.
some of these guys are running 8 ozs of AAA bud and only using 4 cans of butane, dont matter how shitty their technique is itll still end up decent every time.
other guys are using 4 grams of super junk bud and trying every trick in the book to get a nice golden shatter.
cant make chicken soup outta chicken shit.
I think as long as youre starting with primo material, thats 95% of the battle already won right there.