Health,
1.Rav Ovadia rejects Rav Moshe’s opinion and even rules that one must make aliya against one’s parents’ wishes (Yechaveh Daat 4:49).
2.The site you quoted also contains the opinions of the Tzitz Eliezer and Rav Schachter against Rav Moshe’s opinion.
3. See also “The Mitzvah of Living in the Land of Yisrael:Is it a Biblical Commandment?” on yutorah.org.
4. The Mabit says that a mistaken talmid wrote what is attributed to Rav Chaim Cohen (Pitchei Teshuva 75:6 who records dissenting opinions, most prominently the Teshuvot Maharit 58).