Is it just me or is Slic3r's support generation a little on the overzealous

Is it just me or is Slic3r’s support generation a little on the overzealous side? I can’t figure out why its generating support in areas where nothing is printed above it. Coming from Cura so I’m a little bit at a loss as to what I should be expecting. For this particular model I will probably just print without support, but it would be nice so see this corrected. I’m using the latest version as far as I can tell that has the XY separation option. Any ideas?