Alabasta Luffy who punched through Bedrock would low diff/stomp Mr.1, not only was he much faster, Mr.1 isn't completely immune to blunt damage like he was to cutting/piercing attacks.
Not once did he imply anyone other than swordsman were a mismatch for him. He was sweating at the thought of taking Mr.2's kicks, and shielded his body by blocking, if Oda wanted to show he couldn't take damage by blunt force boy did he do a terrible job at it. Even following the properties of steel irl, much easier to deal blunt damage than to cut. It's pretty easy to understand.
Portrayal, statements, feats, logic. Everything says Mr.1 could be harmed by blunt force, nothing implies he couldn't (Mr.2 was implied to be able to do it, can't imagine what Luffy would do to the poor guy).
