For what it’s worth – I sent in an ask that referred to 9.2 as “Lily’s Interlude” even though it’s a numbered chapter. Technically it isn’t an Interlude, you’re right, but I think of Sentinel as an Interlude Arc. Pact and Twig have each had one of those as well.
I don’t think I thought much of it in that instance, but yeah, when the one mentioning “Weld’s Interlude” came in, I just figured that was a thing people did because the chapters in Sentinel are functionally identical to a bunch of Interludes.
Krixwell Liveblogs 