[lolbrainwallets]

That tool generates a random salt, so passphrase cracking time is O(n) where n is the number of files being cracked vs O(1) for Minilock public keys. Additionally, encrypted files are generally still not "public", whereas Minilock public keys likely would be.

[andor]

Assuming that all files are encrypted with the same passphrase, and you crack the passphrase, not the key generated from kdf(salt, passphrase), complexity is O(1) for Minilock as well.