No? Sure seems like it to me. If it was just simple clarification for some, other fans would understand it easily, and explain it to those who didn't.
It's not like every fan is psychically connected and can voice questions/answers to all the other fans. And on top of that, you get epileptic tree theories, which if given a little effort can be just as viable as what the author intended.
If an author has an idea of how the story ends, THEY PUT IT IN THE DAMN STORY. Or make some kind of clear explanation. Or leave it for the sequel. Word of God is one of two things. Making up for bad storytelling, or ass-pulling to shut fans up.
Languages are ambiguous, stories even more so. You can't explain everything exactly without ruining the pacing or using dry, boring language. Misunderstandings are inevitable.
However, most of the time
they are not important - I think there's some sort of catchy motto for it, but basically the readers interpretation is just as valid as the authors. They can't clash when you can't ask the authors directly, which is how it used to be in the olden days before the internet and forums.