Why is that similar? The argument against hiding on top versus "telecow" is vastly different.
Yes, each case is a different situation. The hiding on top on Roper
tactic has a snowball effect that for many players makes the scheme boring or less fair. In Hysteria, the "worm rotation manipulation"
tactic brings balance to the scheme and deal well with start positions. However, some people prefer to play hysteria focused more on the artillery aspect only, forgetting the conventional gameplay roots it has. Just the way BnG rules were created. The
tactic of direct shots and sitting nades were considered less fun, or cheap attacks at the point that some players decided to officially create a new rule that later became standard to the scheme.
These are the things that these tactics have in common: they are not apreciated by many players, leading them to create a new sportsmanship behavior, that may or not become new rules that turn the scheme itself into a new variation. The problem is that some rules are subjective and hard to implement in an effective and easy way to people understand and follow it in a mutual agreement.
The best rules exist to fix a "problem" of the scheme, or at least to fix something that makes the scheme boring, repetitive, unfair, snowballing or less fun to play. The rule in these situations is something natural and not created out of the blue by the author of the scheme.
For example, when SIBASA and I created
Spawn for Weapons, we were playing only with the main rule intrinsic to the scheme idea that is about only using a weapon if it is the one where the health crate spawned. The gameplay was not so fun playing only with this rule, so we felt the necessity of adding an extra rule, this one: "It is forbidden to attack with the same weapon that was last used by the enemy before your move.". This made the gameplay much better, and way more fun.
The Plop War rule was created similarly too.
The Team17 rule that you cannot rope knock worms is now a scheme feature, but I never understood well the reasons of this rule.
Anyway, I think the Roper rule forbidding players to hide on top should be official as a scheme variation that might be the pattern as the BnG rules are now. Or maybe they will be like Hysteria and Hysteria with no "telecow/jetcow", or Selecsteria, that half players like worm rotation manipulation and half don't like.