Be. More. Specific.

[Urmom]

Don't think it go officially translated but jp dev notes did talk about it

There are currently 4 kinds of dial campaigns, as follows:

SP Dial Campaign: Once per day, players will obtain a Dial Key SP. The equipment rate from the dial is unchanged.
Adoulin Dial Campaign: Adoulin dial is added to the mystery box and the equipment rate is increased.
Wanted Dial Campaign: Wanted dial is added to the mystery box and the equipment rate is increased.
Abjuration Dial Campaign: Once per day, players will obtain a Dial Key Ab. The equipment rate from the dial is unchanged.

Simply put, for campaigns where an extra type of dial is added to the box, the equipment rate will be increased.

It’s also worth noting when using Dial Key SPs, players also receive equipment at a higher rate than usual.

As you can see from the translation there is some ambiguity and most likely should be interpreted as just those dials are being increased. This makes a bit of sense considering the ones that do say no increase are ones it would be pointless to increase as the key already increases and the abj key can't get equipment.

Also noted that the notes for this campaign just say special dial yield more equipment not and using keys. Most likely it's bringing it up to keys level