I think that the worst case with the ice giants is that you just run past them. If they chase you, the zone line is close by. I don't recall this being an issue though waaaay back on live. I think I was able to run past and not get any agro.
I unfortunately have not been to Permafrost on this server so I can't comment on the challenges or issues presented by patching etc.
__________________
-----------------------
Fearstalker - Enchanter
Guild Leader of <Taken>
-----------------------
|