Yes. Most of ISIS didn't deserve drone attacks. It was a state-like big organization comprised of many diffrent kinds of people who opportunistically, or out of ideology, or by being misled, or under a threat of force, or taken young and brainwashed, joined and helped said organization, which seemed or was in some important cases objectively better than the possible alternatives. Being highly sectarian it was also very horrible to groups of people deemed an underclass.

I certainly wouldn't want to live under (in?) ISIS, but that's because I had a luck of being born in a stable country where the government doesn't hate me and doesn't treat me as an underclass, where the police doesn't rob me or beat me,...

Many other people had no such luck, and I will not simply say that they deserve to die, just because someone slaps some label on them without any obvious nuance.