And Thor's place in it...
Like it or not The Phoenix being Thor's mother elevates him to greater levels in the grand scheme of the universe.
Saying Kelda for reasons I can only assume because she's another lightning user is cute and all but it adds absolutely nothing to Thor at all...she has no grand placement in the Marvel Universe unlike the Phoenix or Gaea!
Heck may as well say Aunt May! Lmao!
It throws away all past continuity, and makes his greatest saga alone against the Celestials a sham!