How so?
Qadri was an individual who killed a serving governor on his own, based on his personal belief and interpretation of events and religious matters which did not involve any political motives, he had little to no help from others (he needed an opportunity more than help). Qadri may or may not have private conversations with Taseer and those conversations were never part of any media talk, you can safely assume that matter was between two individuals rather than between two parties or organisations.
Kamal on other hand has no beef with religious political parties or religious organisations even TTP (the terrorists) never tried to target him.
Second Kamal one of the reasons for Kamal's resignation as a senator and leaving his party (MQM) was that he felt his party is being too friendly with PPP (Taseer's party) so your analysis somehow does not make sense because Qadri killed Taseer of PPP, the party which Kamal seems to dislike.