Probably you read an old case/accusation? I haven't read any accusation against paper wallet anymore.

They have an ANN thread in this forum, there's no complain on the thread [ANN] bitaddress.org Safe JavaScript Bitcoin address/private key

Here's the tips if you want to run safely bitaddress on an air gapped device https://security.stackexchange.com/questions/274683/safe-usage-of-bitaddress-org