[Tactics]

What random is only case for trial picked by Judgeman and evidence in case there are multiple evidence.
When it comes to confiscated CT there's no explanation but Higuruma speculated it may became 50:50 between 10S and Shrine in Sukuna case as Judgeman account Sukuna's CT and crime as Yuji's CT and crime for their second trial.

Higuruma also never said he fought scrubs.

He only mentioned, based on his experiences, sorcerers usually become dependent on their CT.
So when Judgeman took their CT often they're weakened to the point he can kill them with ease;
There are some who also good at hand-to-hand combat, but his CE usually enough to cover for it.

Made him realized that Itadori capability is never result of CT/CE but purely his own physical strength.