Is it possible it is intentionally vague because being specific is a long story the author doesn't want to get into? Definitely!
In the end, so long as Alexander makes it clear that it is aligned with her wishes, the exact reasons(s) are unimportant. The pieces in question are his work, he in in full rights to change them. The name is hers, and she should have veto on its use. They agreed on a path forward.
From there, I am not certain why anyone has issue with it.
That's the problem, isn't it?
I read the blog post several times. There is, in fact, no indication that they agreed on a path forward. Other than changing it to accurately reflect her name. That's the problem with the post being (either intentionally, or unintentionally) vague.
Because imagine the following two very different scenarios-
1. They talked, and finally agreed to change the name to correctly and accurately reflect her name. After that conversation, Alexander said, "Screw it. This is a lot of work. If ima do this much work, might as well name it after myself."
2. They talked, and Jaquays agreed that it was totally cool for Alexander to re-name it after himself. Anything was better than misspelling her name.
Based on the blog post alone, I cannot tell you which of those two happened. But I will certainly have a very different impression of what happened depending on which occurred. Given the prior history involved* as well ... yeah.
So, again, withholding judgment until there is clarification. But if the conversation was to correct it to the accurate spelling, and then after that conversation Alexander renamed it to himself, I am going to feel exceptionally differently about this, and would further question why he invoked that history in this post.
This should be a simple matter to clarify, and I assume it will happen.
*Again, there was the prior history with deadnaming. While I truly credit people with changing their minds ... it did take a while.