Okay, that is distinctly not good news. That's the sort of thing that should not pass playtesting.That does still seem to be a potential problem.
As I read the rules, a trauma test is 3d10 (using the highest - worst - dice) against a rating of 5 + Physique stat, with -3 modifier. An Orca character (such as Brute Squad in the Quickstart) can have a Physique as high as 13. That makes it impossible for that character to fail a trauma test. And this is after actually doing damage to them, which also subtracts the character's Physique from the weapon damage rating.
OK - Orcas are an edge case, but if you're going to have stats for them (and especially if they are playable characters) they should work in the framework the rules create. It seems reasonable that you might need a heavy weapon to hurt an Orca, but the fact that it can't die is silly.
Suggested change - trauma tests should be the same number for every character - 8 perhaps (you're picking the highest of 3 dice, so you need some change of surviving!), OR change the rule so that you use the cumulative wound penalty, instead of just the -3 from the injury that triggered the test. This way, Orcas are still touch SOBs because you'd need multiple critical hits (with a heavy weapon, no less), but they are at least killable.