Was Luke 22:29-32 a license to sin?

Eternal security is often criticized as giving people a license to sin. But even under a non-eternal-security reading of scripture, Jesus tells Peter that he'll be in heaven and that his faith won't fail in Luke 22:29-32. Just after, he refers to how Peter would deny him and do it multiple times. And Peter fell even harder than that. He repeatedly fell asleep and later abandoned Jesus in the Garden of Gethsemane, didn't go to the cross, went into hiding, and didn't understand or believe what Jesus had said about his resurrection. What Jesus said in Luke 22:29-32 wasn't a license to sin. It was a blessing to Peter and to other Christians, just like the other references to eternal security in scripture.