they wanted to play on light; absolutely no one was being forced into full
the subsequent argument arose only because of the categorical nature of some comrades... for example, I personally enjoy playing SoD, while realizing that on TE even a light return from moves could be significantly higher, and less attention and concentration would be spent))))
if an alternative is to be made, they'll want to play not just SoD, but SM, which those compatriots of yours mentioned will categorically refuse to play :(
and who then is such a tournament for? For a couple of people incapable of finding reasonable (and essentially beneficial for themselves as well) compromises? :)
(с) Roger Zelazny