yes, i have read it. i also liked it. the only problem i have with it is that they shouldn't have been able to kill a frost giant with a simple grenade. these ancient, mystical giants should be much harder to kill.
that's the one thing that bothers me most about the beings from the nine worlds. they always seem much too easy to kill.
That the grenade is thrown inside his mouth, where he is more vulnerable. But whatever, as usual, it's not very consistent, since the frost giant doesn't seem to have much trouble with namor's punches or bullets earlier on. Kind of a minor point, though, given that it's just a random frost giant. It's not even clear to me why the frost giant is there, so that aspect of the issue struck me as a little incoherent.