It was suggested to me last week that FATE spawn rates had been nerfed. I did eventually get around to testing this tonight. My conclusion is that it has not been nerfed in South Shroud. Data is as follows for any interested parties.
t=8:34
lv20 - 8836/56600
t=9:12
lv21 - 39913/63900
t=9:19
lv22 - 11895/71400
t=9:41
lv23 - 11736/79100
t=10:13
lv24 - 14763/87100
t=10:38
lv25 - 3014/95200
t=11:03
lv26 - 8623/109800
t=11:36
lv27 - 19628/124800
t=11:59
lv28 - 1558/140200
Intervals:
lv 20-21
t=38
xp=87677
r=2307
lv21-22
t=7
xp=35882
r=5126
lv22-23
t=22
xp=71241
r=3238
lv23-24
t=32
xp=82127
r=2566
lv24
t=25
xp=75351
r=3014
lv25
t=25
xp=100809
r=4032
lv26
t=33
xp=120805
r=3661
lv27
t=23
xp=106730
r=4640