All of the abilities you listed can be survived by even a dps, except for maybe fel fireball.
The melee damage in this instance is not worth 2x stam trinkets anymore. The only place where i still use 2x stam trinkets is I choose you Steelbreaker, nowhere else post epic gems.
edit: If you want another reason why to go away from dual stam trinkets, read the gearing guides. There are multiple ways some swear behind 2x stam trinkets, some 1x stam, 1x avoid some 2x avoidance trinkets. There is no golden path, it just depends on what you think is best. Both ways work almost as good yet one is better than the other occasionaly.
So go read the gearing guides, this is not the place to start another 20 page discussion why 2x stamina is so so so much better than stam + avoidance trinkets
