The author mentioned it was an early finale, so it was likely forced to conclude for personal or sales reasons--but that was the most abrupt I'd ever seen a series end. Still, happy ending!
I don't understand why in those cases, they just don't say outright what they had planned. At least it'd be a real closure even though not the one we would hope for
I agree. I imagine it's tied to a couple things:
1. Not wanting the fans to be sad hearing about the stuff PLANNED to do but never ended up happening. Or maybe it just makes the author annoyed/sad to talk about it. Plus it could make them mad at the author or publisher, and fans may pester them with "what happened after that" and they don't know because they never got that far.
2. They wanna save the ideas for another project.
3. Contractual obligations. I've read several BLs that ended before the authors could execute all their ideas (either forced to end by the publisher or by the author for personal reasons), and I NEVER hear them talk about the scrapped ideas or the details of WHY it ended early.
Now that you mention it, your third point might actually be the real reason!
If that's the case, it's a shame; I think stuff like that shouldn't apply to authors making original works. Contracted creators, maybe, but not ones who started making their own stuff that wasn't adaptations and just used the internet in order to get their story out there.
Thats it....