it was really weird, I don't recall Sindel ever being a powerful character so the fact that she just waltzed in a murdered half the cast was kinda confusing. yes she was powered by shang tsung but even so, still a weird moment. had it been Goro, motaro or some other mk character was an actual threat it would of made more sense, but sindel? come on...
It's not the fact that Sindel is powerful that was so dumb. It was the fact that every character simultaneously decided to go into mook mode. They basically let themselves be killed in the way you expect unnamed goons to, approaching one at a time with a reckless and slow attack that leaves them wide open only to be taken down in 1-to-2 hits.