Great guide, alot of really good info in here. Fives knows what he is talking about from what I have read in the guide, regardless of his skill in game.
All readers can benifit from this advice.
Things I would add tho,
I would put pharoh into the initiators group, his ult + mummies is in my opinion the strongest initiation besides behemoth (who never sees the light of day due to bans).
It causes havok by splitting the other team and in the right position can render enemy mele heroes useless for upwards of five seconds at the start of the fight.
Tempest used to be godlike as you said, but not only has he gained many counters (pharoh, vindicator, anyone with a physical stun..) he also forced players to learn quick how to avoid bunching up.
This has made him almost useless in classic standoff team fights as an initiator. No decent team sits and waits in a group when temp is on the other team, they spread the fck out.
He is still used in top tier games, but it seems as his role has shifted to a follow up cc once someone like pharoh has already initiated.
Also if your playing against a decent team, pullward inside trees is a better option as its much harder to counterward. The downside is that you dont get any vision in jungle.