If you prefer to have the abscess opened, then why post a thread to ask? I just offered my opinion, based on my experiences, and I see more reinfection with cutting it open than letting it pop, and soaking DOES tend to speed up popping time, by softening up the capsule. And you didn't say you were thinking of having it cut open, just should it be cut, so I misinterpreted your post, you could have been asking if you should do it yourself for all I knew.
I find The Horse is very traditionally minded and they have posted a couple of articles that were a bit anti-barefoot in a way. They really support having a vet manipulate the hoof, whereas I feel too much manipulation by penetrating into senstive structures is more harmful than soaking with an antifungal liquid. However, yes, excess moisture of any kind, in a prolonged manner IS very bad, making the hoof more suseptable to bruising, however, in a well trimmed hoof, it's not as catatstrophic as say, having a shoe nailed on, where the hoof is suspended by the wall, which COULD lead to some issues by the over soft tissues giving way to the mechanical forces of having said shoe or poor trim.
Again, just offering my advice and opinion-that soaking is the lesser evil in the treatment of an abscess, and leaves less after care than probing does. Abscesses that take longer to brew are usually more in depth and can involve the entire sole, but , cutting in one spot proboably won't allow enough drainage, and it can continue to cause a lot of pain. A big hole will only expose more senstive structures. Lettting it pop on it's own gives the sole time to form new tissue to cover the senstive structures before it is popped open.
Bute may slow down the progress of the abscess coming to a head, but can offer some pain relief, perhaps not if it's painful enough. If the foot was easier to keep clean and didn't tend to just re-abscess anyway, I would say cutting was a better means, but it's generally not.