The new change Sherlock is making is turning “It’s the clue Master Luke was looking for” into “This must be the clue that Master Luke was looking for”. This aims to make it so that 3PO doesn’t know what the dagger says. Personally I oppose to this change since it makes the already ridiculous plot even more ridiculous, as the gang would go through the whole ordeal to translate the inscription (traveling to an occupied warzone, sacrificing 3PO’s memory) without even knowing for sure it’s the information they need.

For comparison here’s Sherlock’s previous version (which also removes the lines relating to the location of the Wayfinder):

Looking back on it, it still reads as 3PO knowing what the dagger says (knowing for sure it’s what they need) but being unable to transalte, so I think it’s the better version (I would just add back the line “Oh I have read it, sir” if it can fitted back in). Sherlock argues it’s dumb for 3PO to know the information and not be able to relay it in another way, which is more of a nitpick on the same level of “dumb if you stop and really think about it” as everything else in the film. I think it’s dumber to have the whole second act hinge on translating this random inscription without even knowing it has the information they need.

Also this new change doesn’t fully work since when Finn asks “Where’s the Wayfinder?” 3PO says “I am afraid I cannot tell you” instead of “I am afraid I don’t know since I’m unable to translate this inscription and it might not even contain the location of the Wayfinder but I just have such a good hunch this is what we need I’d be willing to sacrifice my entire existence for it”.