IMO it was an ill-conceived idea by some well intentioned but misguided folks and obligatory assorted ancillary nutbags/attention whores to "educate" and "desensitize" the public to OC and being around folks with guns where nothing (bad) happened, i.e.; it wasn't as scary as "they" would have you believe. The idea to OC long guns I think was two-fold (both bad ideas); as previously described and to illustrate the absurdity of Texas laws allowing OC of long guns but not handguns. It didn't work out and resulted in bad press, they stopped, the end.