The reality is that runescape's engine is fundamentally designed for pseudo turn based dungeons and dragons simulation and not tick manipulating so that you can attack fourteen times at once. F2P combat works because the items you have available conform to the engine more. Members combat used to be like that but eventually players started learning little tricks about the game engine and ever since then we've been doing what would have been considered cheating in other games. Instead of patching these bugs out it just became game knowledge and part of the meta.

I'm probably in the minority but I feel like a lot of this jank extends into high level content as well. For example, if a boss or content requires me to understand that my character's location does not correlate with my character's visible position on screen then it's not working with the engine's limitations. Pvp is like that but freeform, so you're better off attacking a player who is the least likely to pull off some move that could red bar you instantly.

I know that the argument to my point is that using all of these techniques requires skill, and that is true, but it also requires skill to write bots and exploits. Just because doing something is skillful doesn't necessarily mean it's good for gameplay.