Calling somebody with his former name and mentioning his former name in a Wikipedia page are two completely different things. Using the fact that the former is seen as rude by some to avoid the second is in my opinion just an example of the level of extremism of the pro-trans activists.
But if in fact it made sense, shouldn't we completely remove any reference of the previous name also from the pages of people like Yusuf Islam [1] or Muhammad Ali [2] ?
It's incredible that in a discussion about brutal violence against a child, the child victim is being painted as the "extremist"!
[1]: https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/Biog...
Everything people are upset over in this thread is explained clearly in the BLP section on privacy, the gender identity section of the Manual of Style [2], and this essay on gender identity [3].
This particular example is completely clear-cut. Sources didn't cover them at all under any previous names because they're only known from one event. Someone who isn't transgender would be covered the exact same way. Wikipedia is an encyclopedia, not a gossip rag.
[1]: https://en.wikipedia.org/wiki/Wikipedia:Biographies_of_livin...
[2]: https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/Biog...
[3]: https://en.wikipedia.org/wiki/Wikipedia:Gender_identity