But false negatives would not have been, and you don’t have the luxury of choice. Even if the LLM had highlighted twenty matches, there’s no guarantee the one good one would be in there, it might just as well have made twenty false positives.
I think that’s within reach of many non-tiny companies. You don’t need to hire someone full time – technical translation work is a service you can already pay for.
What you can’t be sure of is if it claims there is nothing interesting.
False positives are fine for this use case.