quasi hound
If you just wanted an answer to why the crafting requirements were odd you could have asked in #game-questions
As for the reason why it feels "misplaced", it's outlined in the news blog https://secure.runescape.com/m=news/new-slayer-boss---the-araxyte?oldschool=1
But here's the tl;dr:
- They didn't want to set a precedent of lowering requirements for existing gear to make room for new gear.
- Current requirements mean Ironmen still need 98 crafting and Mains need 86 to make a profit off the fang
I'll be closing this thread now since it's moreso just a question than a suggestion.