Wasn’t it just a couple years ago now where they were in early dev stages which leaked thanks to some kid hacking their systems via slack or something?

Nah; we'll find out they reset development four times or something as scope expanded and hardware became more powerful; and so it's nothing but bugs and still rushed to the deadline. To me this screams scope creep, development hell, and constant redoing of existing work; and good luck not turning into design-by-committee when that happens.

(Edit: As the comment below points out, this happened to Windows Vista. There are plenty more examples though - Metroid Prime 4 was even announced by Nintendo, before being completely scrapped and rebuilt for another 6 years, finally coming out this year.)