Shamela and spoof on Pamela lovers

The spoof Shamela, was effective at comic relief but a minimally respectable work of art. Since, Fielding only put about sixty pages worth of energy into the novel I will not really hold it against him or say, it was not necessary. A satire of Pamela probably was necessary.
Richardson seemed to have some ideas about improvement in mind when he wrote Pamela, though and even if I think they were self-destructive in the end, Fielding's premise for writing Shamela seems trivial and indecent. I do not appreciate it as a work of art, maybe just an attack on all people who took Pamela as a second Bible.