Speaking from the part-time professors perspective: occurring in parallel to this is a steady growth in course section sizes. 30 students used to be the norm for some courses, but 80-90 is the new normal just a few years later. Some of these tools are designed to help manage this. But the actual process of planning and delivering a lecture, providing individual feedback on written assignments (like exams), etc. is suffering.
Teaching effectively to a large section is harder than you might think, especially when teaching is only a fraction of your job & you have no TAs. But half-assing it is actually not too hard I guess. And you are seldom rewarded for the former. Thankfully for me and for my students, it is mostly a side hobby for me and not a living.