I'm in agreement here. I don't really like the icons. I fail to see the improvement they provide. As mentioned, they don't save any space, given that in most cases the Save or Edit button is still sitting alongside those small icons on the same row. So in the end they take up the same vertical space, just less horizontal space, but horizontal space in the GUI has never been an issue except in the case of large sets of data with many rows.
Plus, the UI looks a bit disjointed now with actual buttons (Save, Edit) alongside icons that aren't always easy to tell what they do.
The bottom line is, there are a lot of areas where Jamf can be making UI improvements. The buttons on those pages was probably near the bottom on my list, as I'm sure it was on most others. I'm not clear why they spent the time on redesigning this.