It just feels like we have to do a lot of mental gymnastics to make the line make sense. Lando was on a different planet! But then he was able to travel there immediately! But then he decides to hang back at his hideout and not help them anymore! And Leia knew about Lando, but she was only able to send him a recorded message! Live communications don’t work in this case because reasons! And Lando couldn’t send his own message just because! And Leia didn’t tell Rey that she was reaching out to Lando just because!
All of this is conjecture.
Like I said, if you want to keep it still, that’s fine. It’s five words of ADR, it’s really not worth all of this. We’ve taken a simple critique about tension building and turned it into a three page discussion on implied lore. Does headcannon really matter this much?