It's a good rule of thumb that scenes have just been getting shorter and shorter since the late-1990s when producers realized such a narrative structure could be much easier/quicker to tape, and a lot can be said without any real plot progression. In many cases you can't even refer to the segments in current soaps as "scenes". It's more of a system where one long scene is written, but broken up into segments that they show a few lines at a time throughout the hour. It's a great way to stretch out a plotline, and lord knows B&B can stretch out a plotline like no one else. The only time we get satisfying scenes of any length is when they make a conscious decision to advance the plot. But even then, a modern "substantial scene" might be three or four minutes, even in an hour-long soap.
The irony is that most soaps expanded to the hour-long format just so they could have longer, more in-depth and dramatic scenes. Another World (the first soap to expand) regularly featured nine-minute long scenes after the expansion, often with just two or three actors interacting for the entire period between commercial breaks--no cutting to "B" plots or mixing in several smaller scenes. Critics likened the format to watching a play rather than a TV show. They eventually gave in to the shorter scenes like everyone else, though. I can imagine the actors were not as enamored, however, since it meant memorizing a ton of lines regularly. The current, choppy format is probably very actor-friendly in that regard. And if your actor is not very...ahem, strong it would be much easier to hide it with frequent stopping and starting.