As I recall another problem was that the cap imitiative's wording also was not narrowly focused enough to address only one single  voter-response issue that would require only a single "yes" or "no" voter response - which is and always has been required for a ballot.
If real property-owning residents want a tax cap that limits property taxes they might also look at adding a minimally-regressive sales tax to our Muni revenue mix and reduce the current 100% reliance on property taxes .