I'll be honest, whilst it seems like this was very late - looks like they were projecting July 2022, so a year and a half late - the fact that they go it out, it's massive, and it's good makes it very hard for me to credit your accusations of "shady business".
Shady business would be if it came out never, or if it came out 1.5 years late but missing a lot of the material, or the material was just crap. Whereas this seems to have an insane amount of material, which by the accounts of people who have read it, is above-par in terms of quality, too. I can definitely understand being annoyed at a 1.5 year delay (usually that just means something outright is never happening), but I'm not seeing the shady.