Imagine falling for Toby's vagueposting.
Again.
This is way worse than the Shadow Crystals being added after the SURVEY PROGRAM. Never before has there been a fucking monologue full of bullshit theorybait added after a chapter has been concluded. In case you needed proof that Toby's just making this up as he goes along, look no further than it being two weeks after the chapter launched.
If this was ever story critical in any way and someone just forgot to add it in, he would have patched this inside a few days.
I guarantee you he wrote this on the fly, somewhat tied it to previous characters, and shipped it to satisfy theoryschizos. And if that's the case, then there is absolutely no way he'll tie it into the story in any meaningful way.
If he's willing to do this, then get ready to play Alteruned coming in 2045 = the true and honest Deltarune.