I didn't mind the no-editing rule personally. Given that this was the first time I had joined TPvP, I made sure to read the rules from top to bottom before attempting to take part in the event. However, there were a few issues with this that I did feel were very problematic.
Firstly, the location of the rule itself. Yeah, it's listed in a red font, but it's not where it's supposed to be located which would be underneath of the specific rules for this event. You can tell people that they needed to read the rules all they like, but the the bottom line is that if the rule isn't specifically pointed out in the section for rules exclusive to this event, then it will go by largely unnoticed. Unless some announcement is made beforehand that things have changed, I know that I personally don't normally reread the standard set of rules for PvP Events since for me they're the same unless indicated otherwise.
To go along with what I said above, the only way this rule would have been accepted was if it was either added in that exclusive rules set for this event list or if it was applied to all TPvP Events. It also makes little sense for this rule to be applied to this event specifically when all other PvP Events have the same potential for this type of cheating to transpire (not to mention it's not an effective method of stopping the cheating at all). This rule was applied during the last TPvP Event because of a certain happening which forced the residing PvPO to take action to prevent the drama from getting out of hand; there was no reason to assume that this drama would resurface in a new form just because this just happened to be the same event, restarted.
None of this is an excuse for starting drama during the event itself, however. We do have a set of forum rules for a reason.
Yeah, I don't like that substitution system, but I really don't see a better way of doing it. I mean, I guess you could improve on it slightly by having one reserve member for each team just in case someone does drop, but there's no way of stopping someone from leaving if they really want to. Of course not allowing a substitution would really be unfair to the other players on a team if their member dropped without notice, putting them at a disadvantage and causing them to wish they had selected another member as that 3rd leg. I think the system's fine, even if I wish that it didn't have to exist to begin with.