Am I the only one who generates my paper wallets manually?
Flip a coin 11 times, turn the resulting number in to a BIP39 word from the word list. Repeat 23 times. Flip a coin 3 times, calculate the checksum using a permanently airgapped computer, pick the last word. Write down on paper, import in to a wallet or iancoleman on your permanently airgapped computer to generate a receiving address (Optional: add in a passphrase and write that down on a separate piece of paper). Whole thing can be done in 15-20 minutes.
If your are using paper wallets for long term storage of the majority of my funds, then why not take the time to remove the trust for a third party generating your seed/keys entirely?