ill just share how we do it in our guild:
we set a 10k limit registration instead of 0 dmg
if u go above 10k, u arent allowed to hit the raid anymore
hence its nor by player ID which sucked so bad, and its not random which is fine by me
its whoever puts some time to get as close to 10k as he can
plus we have 30 mins courtesy time before solo players can register, that way ensuring players can play p1 p2 p3 without someone jumping the gun and finishing the whole raid instantly
that way we remove the random element of the rankings.
"speaking for the entire swgoh community on this one" <== No ur not @wrekincruw
EDIT: or we can equalize the amount of han solo shards like in HAAT, so people can get it fasrer