Can someone please explain to me the gear progression. Here's what i know

Tomestone of Philosophy - ilvl 70
Tomestone of Mythology - ilvl 90

So obviously the idea is to spam AK and CM/TP to gear in philo gear and hten move onto myth once in raids. But where does crafting gear fit into this ? A FC member said that crafted gear is bad but there's a second tier of crafting gear thats actually better than the ilvl 70 stuff , is this true ?