I speak Spanish fluently just like the Cuban you mention. He must have been a traditionalist like me who knew better than to say it the way it is said by everyone. Google the first three lines of your prayer above and you'll find that it comes back as "Dios te salve Maria", which is the way it is said in Spanish everywhere. Hence the OP.
Yes, he is more traditional. When his family had the opportunity he would go to the Latin Mass and that was back when I was still a teenager and had to go to the novus ordo with my family.
I never heard the other version in all my studies. It must be a newer thing? Maybe novus ordo? Because it could cause confusion for Our Lady? 🤔