A city-wide meeting was held in one large city with JWs and a no-blood clinic. The clinic only requested that JWs file a HC-POA with them some time prior to any operation. The elders and others assured them that would take place. Six months after this meeting, about 5 out of the over 150 present filed
Blondie: At a meeting just like that in California, the no-blood clinic director (a dub elder and former long-time HLC member) asked for a show of hands after the presentation. He wanted to know how many thought, in view of what they'd just seen and heard, that they would avail themselves of all these "conscience matter" options. If there were 150 in the room, 148 raised their hands. He then asked, "Any who would not?" and two crusty old farts in the back stuck their hands up defiantly.
Even so, I would bet the number of HC-POA's generated by that group was no better than the one you referenced above.