For what it's worth, you get no drops from if you don't meet the level or BP requirements for enemies, and before that change it was simply impossible because it would leave as soon as the storm ended.
I'm 100% sure the devs know about it, everyone had been talking about it since gigantix came out. They even hinted before the game released that even though lake halphia would very rarely have very strong enemies in it, which was probably about the daityl, even though it got added later. If they wanted it to be a normal gigantix they expected people to fight, they easily could have given the zone a more accessible level than 60.