That is a fair point. I only really play Wong and Zipp in Bayou at the moment, so I might not have a great frame of reference.
Also, I have heard that about the Pigapult a lot, but are there any reliable/official sources for this? I know that Wong's Uncontrollable Magic and similar abilities were adressed, but the pigapult's ability doesn't appear to function in the same way. In particular the FAQ states :
Q: If a Shockwave Action is centered on a model (from an effect such as Wong’s Uncontrollable Magic), does that model suffer the effects of the Shockwave?
A: No. In such cases, Shockwave Markers aren’t dropped and instead the Shockwave is generated as a p centered on the model, which (as per Pulses pg. 31) does not affect the object from which the p is centered.
If you look at Wong's ability, it specifically states that you do not drop a shockwave marker. The same is true for other similar abilities. The only exception is the pigapult, which also has the wording of the trigger that implies that the model does take the damage.
That is to say, not that I am doubting you, but rather I find the FAQ didn't really clear much up in regards to the Pigapult, rather it muddied the waters and made things less clear. Am I mistaken in assuming this? In general I try to clear it up with my opponents beforehand, but it would be nice to have some sort of official opinion.