It’d be very nice to somehow link the massive fleet arriving to support the Resistance with the legend of Luke Skywalker, but I’m not sure how. Adding it to the crawl wouldn’t compliment the film up until the end seeming like the Resistance was still pretty much alone.
This is one of the biggest things from TLJ that was lost in the new film. TLJ built up so well to the moment when Luke is able to become the legend everyone wants him to be, and help respark the rebellion. But in TROS, it doesn’t seem to have had much of an effect. There were so many opportunities when new characters were introduced to say something about hearing of Luke’s sacrifice.