I saw one of these drop around the time of the last post here, and this froglok was a 1-2 group mob. We had eleven and had no problems. A week or two later we went back and it was a much different fight; we had quite high DPS and by the time the froglok dropped there were easily 25 mobs in camp. Perhaps we found a bug, or maybe this tunic should be a tad better for the effort needed.
Regardless, the ranger was happy, and he won the tunic uncontested on a pickup raid, so I suppose it's nice for someone who got passed up for chest slot drops previously. But none of us on the second raid had any desire to go back, really, when Skyshrine MQs, WW dragon BP's, and Hurricane Chain Tunics are all well under 50k on our server.