Understanding the Professors' Hand-off Attitude [on hold]

When I was a graduate business student some 20 years ago in a major state university in south central US, my general impression was that almost all professors, with very few exception, were "hand-on" with the students' learning, in that they were behaving the same way as if they were teaching undergraduate students.

Now I am taking a second master degree in math with another state university, but this time around I am taking it online. My general impression here is the exact opposite of my past experience. Almost all teachers are "hand-off," meaning that they passed out only class notes, rarely (if at all) gave assignments, and much less returned them with feedback. I am not venting here but I just wanted to know the professors' hardship, circumstances and points of view, such that I may better understand their predicaments.

For your info, my school is a non flag-ship school in the state university system, almost all students are HS math teachers whose only goal is getting master degree in math for job purpose, and I suspect lots of them do not even have enough math prerequisite. I am also a HS teacher but I think I am the only one who have middle name in math.

Thank you for your time and effort.