Well, in P3's case it's almost always your fault when it's enemy's advantage. I have never seen, or just can't recall, a situation when I couldn't have moved in a different direction to avoid giving the enemy first strike. I was playing for 3 hours straight earlier this day and I was near a green teleport with a shadow right on it. I opted not to wait for his back to show and just hit his face to initiate battle. He had advantage and I had a persona that was weak to ice. Funny thing happened: he used Bufu on me three times in a row. I could have avoided that if I retreated and then came back with strike to the back for player's advantage. So, the way I see it, Hama and Mudo are less of an excuse in P3 for getting cheap deaths other than lack of patience when waiting for exposed backs. Otherwise, yeah, it's cheap in something like Nocturne or DDS, but I like it.
not really? i noticed on hard that sometimes when you strike an enemy instead of the battle starting neutral the enemy will have the advantage for no reason. when i destroyed my cd i encountered a bunch of tiara's and had a light weak persona equiped,and for no reason they had the advantage. i ended up dying because they spammed a high level hama spell until all my characters were dead and destroyed all my homonculus.