Although I regard Ronaldo as one of the greatest players ever, this judge doesn't hide his Madrid's bias.
Let's put some questions in their places.
I really can't see it as something negative for Messi's career. If it's a great feat for legendary players like Totti, Maldini, Giggs, Scholes and Iniesta, thus, why should it be a curse for Messi?
This statistic doesn't take into account that Ronaldo signed up for Real Madrid as world-class player
(he won the Ballon D'Or in 2008 before having gone to Madrid), whilst Messi was a youngster developing his skills during his first Barcelona's matches. No one of them started their career with +50 goals per season, so it's quite unfair to compare them in this way.
Messi is so humble... as far as I know, Messi edges Ronaldo when it comes to long distance shoots, despite finishing considerably less than the Portuguese.
Another point for Messi, since his average goals is higher than Ronaldo overall. CR7 has about 45 goals ahead and made more than 150 appearances than the Argentinian. By the way, it's interesting that the judge didn't analyse some aspects like number of assists or shooting efficiency.
But... answering the thread, I can only assure Ronaldo is a formidable player and one of the greatest of all time.