In the battle for the ring space in Leviathan Falls, Duarte's ships enter the ring space in multiple waves of synchronized transits. For example, one wave is indicated by the Rocinante's sensor screen as follows:
Five more red dots transiting through different ring gates in the same moment.
Leviathan Falls, p. 444 (emphasis added)
This makes sense tactically, as it introduces an element of surprise for Duarte's forces -- especially when the synchronized transits occur through widely-spaced ring gates. However, this is also a nearly perfect strategy to cause the transiting ships to go dutchman since the risk of going dutchman is a function of
The safety curve [that is] based on the amount of matter and energy making transits though the gate network.
Tiamat's Wrath, p. 213
Furthermore, many of Duarte's ships transited while traveling extremely fast despite the fact that earlier in the same book Holden had expressed concern about traveling too fast while transiting:
We also don’t want to go through so fast we dutchman ourselves.
Jim Holden, Leviathan Falls, p. 246
The transiting ships seem to be a mix of vessels of various sizes and purposes, so it's possible that some of them are fairly small and therefore pose relatively low risk of going dutchman even if traveling fast and transiting at the same time as other ships. However, some of the transiting ships are described as "freighters" (which could be quite large) and one of the transiting ships was definitely the massive Magnetar-class battlecruiser the Voice of the Whirlwind, which is also known to have transited while traveling very fast.
Why didn't any of these ships, especially the Magnetar-class battlecruiser, go dutchman?
The best explanation I can come up with is that
Duarte prevented them from going dutchman just like he saved the Preiss.
However, I'm skeptical about this explanation because
1. The ring gate acted oddly enough when the Preiss was saved from going dutchman that Aliana Tanaka thought the Preiss was about to go dutchman, yet I didn't catch any similar description of the ring gates acting differently when Duarte's ships transited through them.
2. I find it hard to believe that Duarte would be able to save multiple ships, in repeated waves, while controlling his hive mind, and in the middle of a battle against both the Goths and the forces led by the Rocinante. Holden had a hard enough time fighting just the Goths when he took over control of the Ring Station, so I would think Duarte would have had an even harder time doing all that and preventing the ships under his control from going dutchman.
Did I miss a subtle explanation for how Duarte's ships avoided going dutchman during this battle?