Robin Williams himself famously did humorous impersonations of recently-deceased celebrities and politicians. He was an irreverent comedian. You guys need to relax.
Robin Williams' daughter's complaint isn't, "AI is easy." She's complaining that impersonating her father in this way is disrespectful and that he wouldn't like it.
Do you think anyone deceased that Robin Williams made fun of, or their families, would've said, "You know what, nevermind that this is disrespectful, it took work!"