I still think the overall design of wilderness agility is bad. I get that you want to increase rewards to make it both worth going and worth pk'ing, but it should not offer both (near) top experience rates as well as sizable loot, the goals of people doing the content (both pkers and agility-doers) clash so hard its just going to make everyone upset.
Trying to tank there is a crapshoot too, since the only way out via the log lets people stack like 3 hits on you on the way out.
I wonder if a better design would just be -
Higher fee (250k+) on entry, same rules for lost on death, slightly higher xp rates that you hit instantly (~75k/h), no loot. Pkers would still be incentivized to go here because you can kill a lot of people fast for their fees, but staying there just risks your agility rates or something instead of actual loot.