It’s fun to try and breach security measures like this. But I don’t buy into the fear that fingerprint verification is less secure than a passcode at all.
A thief is going to have to steal your phone, find that fingerprint & have a way to capture & format your fingerprint so that it’s useable. Obviously it’s doable if someone specifically targets you and spends enough time around you, to access your phone and your fingerprint but that approach isn’t going to work for your common opportunistic thief.
Compare that challenge to being able to try to hack into your phone an infinite number of times via phishing or Wi-Fi exploits etc. though and I’m confident that fingerprint verification is the better option, even if it’s not perfect.