How do rH packs compensate for temp?

So most of us growers have come to realize that relative humidity is basically something like 'absolute humidity / temp = relative humidity' given the fact that higher temperatures are able to handle a higher moisture content.

So how is it that these two-way rH packs that are based off a salt/saline solution are able to compensate for changes in temperature?
Does the pack not have to function differently at 60F than say it would say 70F?
Could frequent changes in temp (between 60f-70f) cause the pack to over compensate and also fluctuate rH at the sametime causing loss in terpenes?

Been hearing a lot of talk about people ditching their rH packs, sounds like some bro science territory. What you guys think?

Considering higher temps are more prone to mold, it would seem as though anything above 70⁰ would shorten the lifespan of the packs because of constantly trying to drop the humidity, opposed to maintaining it.