Though I'm not entirely certain I can try and answer how a Eyelash would react.
In general (with a few exceptions) arboreal vipers don't thrash or show as much aggression as some other viper species. However, extreme caution because hooking them while they are coiled around a branch is most likely incredibly difficult or impossible.
If you are interested in keeping venomous snakes, try keeping a few aggressive colubrids first (such as racers, water snakes, bull snakes) and keep them for a long time until you get proficent at keeping them without getting bitten.
Make sure to visit someone who has hot snakes and let them show you the ropes first... these animals are dangerous if handled or kept improperly, but with training they are kept without too much risk.
Unfortunately I do not recieve the Reptiles magazine anymore, so I can't relate to the specific article that you are referring to. From my experience they generally provide a good amount of information about the species and its care, but handling needs to be learned from hands on experience.
Good luck
-----
Sean McIntyre
Currently have:
0.1 Antherystic Elaphe Guttata Guttata - Corn Snake
1.0 Elaphe Vulpina Gloydi - Eastern Fox Snake
0.1 Leucistic Elaphe Obsoleta Linheimeri - Texas Ratsnake
1.1 Morelia Spilota Cheyni - Jungle Carpet Python
Saving for:
Agkistrodon Contortix Mokasen - Northern Copperhead
Epicrates Cenchria Cenchria - Brazilian Rainbow Boa