Anything that makes that whole scene consensual is a massive value add as far as I’m concerned.
With the line in question it reads more like this:
-Leia is fixing the falcon and Han comes in
-Han tries to help, Leia says No
-han becomes pushy, Leia says No, No, No, No
KISS
-Leia says: “Alright Hotshot” by saying no I actually meant yes
-3PO enters the chat
I see your point, but it retroactively characterizes Leia’s “no”, and Harrison Ford’s acting makes them feel more like equals when it comes to the power dynamic going on. It’s a huge improvement in my eyes.