That’s why all this talk about those able to learn all day being an “exception to the rule” misses the point.
Not everyone will become Moshe Rabbeinu, to be sure, but everyone should try to come as close as they can. And everyone admits that being Moshe Rabbeinu is something to look up to, strive for, and admire. Even if most of us don’t ever make it there.
So too even if many people will not learn all day, we all must recognize that it is certainly a higher level, it is a prize and privilege and merit that we should all try to attain, since it provides us with a higher spiritual level, and reaching the highest level possible in this world is our goal.
Today, thank G-d we live in a society where many, many people can learn all day. They recognize, BH, that learning Torah is better for your soul than practicing law. Or accounting. Or writing software. No question about it.
The point is the values, not the behavior. Behavior represents Jews; the values represent Judaism. To say that not everyone will reach the high level of learning all day is acceptable. But to say that isn’t a higher level, is changing the Torah’s values. Talmud Torah Kneged Kulam. And that includes every second of learning.