It's because dex made it as an example. Just watch the 2018 HvH movies - the source he leaked is not latest.
Also if you want to fix completely ^_^
1. Fix forward CreateMove (invalid command pointers)
2. Fix forward FrameStage (basically it's just a meme)
3. Fix invalid checkouts called in UpdateAnimState and UpdateClientSideAnimation
4. Connected/Hltv checkouts - return if invalid or is not engine
5. Offscreen esp memes
6. Fix event listener
7. Notify meme (logs, etc)
8. Injection crashing sometimes - Colorpicker issue and if you injected it again without Steam closing - kernel/user32 bug
That's it.