This is also why it’s convenient to introduce new features in a package. Like with Anarchy: three new things at once – a new template + allrandom + chaos. The same with Diamond: a new template + a new time limit + minor tweaks like linking the rules of черк to the rating.
What do you think would happen if you ran Chaos on full-WOG and Diamond on HotA – the new version with the new tenth Castle? Where would the participants send you?
Added 25 minutes later
And in general, judging by the table of the group stage of the mirror tournament
the problem isn't related to the reasons described above. It can be seen that the SOD players, for whom this was something new, played almost all their games, while the VT players refused to play at all (although maybe the table simply hasn’t been updated). Apparently, the reason is that strong players are very afraid of losing in a mirror match because their ego will suffer, and they clearly won't be able to attribute the defeat to the map layout.