Why is it ironic that pyramus and thisbe a lamentable comedy?

It is ironic that Pyramus and Thisbe is called a lamentable comedy because the play is actually quite tragic. The play tells the story of two young lovers who are forbidden to be together by their families. They decide to meet in the woods, but they are separated by a lioness. Thisbe mistakes Pyramus' cloak for the lioness and she runs away. Pyramus finds Thisbe's cloak and mistakes her for dead, so he kills himself. When Thisbe returns, she finds Pyramus dead and then kills herself. The play ends with the two families reconciling and agreeing to let their children get married. However, the play is still tragic because the two lovers are dead.