Quote J20="J20"Surely Hull reaching 6th can be considered their peak recently?'"
You don't get it.
Think of Superleague as a mountain (not individual mountains for each team).
Leeds have been at the top (the peak) of the mountain for years. They've been up there too long, and are now ready to make their way back down. There are afew teams near the top too.
Hull are halfway up. Rovers have fallen down a gap.
Your club still haven't set off from home, let alone reached base camp.