For a number of people, they benefit spiritually, for a wide variety of factors, by living in chutz l’aaretz.
In Eretz Yisroel there are extremes. Most people are either kodshei kodoshim, very holy and spiritual and pay little to no attention to gashmius and are entirely or almost entirely devoting their lives to ruchniyus – or rachmana litzlon the other extreme, where they almost completely neglect ruchniyus.
As far as an “excuse”, you’ll have to ask Rav Moshe Feinstein, Rav Aharon Kotler, Rav Elchonon Wasserman, the Chofetz Chaim, the Baal Shem Tov, the Vilna Gaon, the Rosh, Rashi, Rabbeinu Gershom, et al what their excuse for living in chutz laaretz was.