If they stop the 5,000 ITAs (for some reason, a new variant of the coronavirus that can't be fought with a vaccine, a change in public opinion about immigration, a conservative government, whatever...) and change the CRS criteria to give, let's say, 20 extra points to CEC, suddenly, I'm not quite sure 480 would be a safe score.
What I'm trying to say is we never know. Back in January, I was sitting at 469, in a time where we just had a 469 draw 3 weeks earlier, and the first draws of january/february were all touching the 471-472. So, as you might have guessed, I heard A TON of "don't worry, 469 is more than enough, the score will drop for sure". I was not comfortable with that, so I started learning french. By march I earned 6 extra points (due to french), and got to 475. I was super excited... I mean, "come on, at 475, my ITA is guarantee at the next draw, right?". And then the CEC/PNP trend started. And then 3 months later I turned 31yrs old, and got back to 469...
What I'm trying to say is: never take a score for granted, because we never know what can happen next week. A new trend on the draws (CEC/PNP), a change in the CRS criteria (french points, CEC points, who knows?), etc.
Express Entry has been just so unstable lately, it's really hard to predict for sure what's going to happen. So, as always, my only recommendation is: don't stop studying and improving your score, until the day you get your ITA.
Otherwise, you (anyone who's reading this) might be losing valuable time, because you were sitting still.
A quick reminder: the CRS score is some sort of a reflection of how well prepared you're to adapt to the Canadian economy. So, improving your score not only helps you in the EE selection process, but might also be helpful for you to develop the skills necessary to make your post-landing plan succeed.