"Happy ending" at least is editorializing by the article's author instead of by whoever posted the link.
Yes, but it's part of the original title (and a POV of the article itself), not a subjective addition on the part of link submitter.
I think it was objectively a long time to make the transfer. I would argue that 'finally' implies the slowness, not whether it's negative or positive. So the edit is not a problem.