It wouldn't help with the spells directly, but it might help by showing how the Apparitions try to resist or escape so she can build in counter-counter measures into her own binding spells.
It is in no way a dishonest argument to say that things can be worth doing on their own and may also be beneficial for other things.
Apparitions are a leap in the dark. We don't know what will help with them, and neither does Mathilde, so Boney won't tell us either way. We can make educated guesses about things that may help, and that's what I'm doing.
This category of magic involve binding spirits, believed to be of the material world rather than of the Aethyr like demons, to a wizard's soul.
We don't know much about the nature of these spirits.
We don't know much about using Ulgu to bind spirits.
We don't know much about the nature of a wizard's soul.
Developing spells based around three things we don't understand well does not strike me as ideal. My preference would be to learn what we can about all three before doing so, and we have actions we can take that will potentially do that for at least the last one.
We were told that if we want to know more about Apparitions we need to go study them in the wild, but that may have been before we recruited a Hag Witch and an elven magical researcher, and with some appropriate favours and befriending they may have some knowledge on those subjects.
As I see Apparition binding as the opposite of urgent, then I have no problem with the slow and steady approach. If one route to building a better foundation doesn't pay out; it doesn't matter as long as we learn or gain something else worthwhile, as I think Gazulite lore or trying to master an arcane mark would be.
