I, too, have tried a variety of spoons, sporks, chopsticks, etc. in a variety of materials, lengths, and foldability.
Finally settled on the REI Campware soup spoon, standard length. I cut it down, and rounded off the sharp end, to just fit inside my Evernew 900 ml pot without falling to the bottom (I hate that!), and life was good.
Then I bought the Trail Designs Sidewinder Ti-Tri (awesome!), but now the rolled-up Ti-Tri and the spoon won't both fit in the pot at the same time, so my custom spoon rides elsewhere :-(
The REI Campware utensils are made from Acetal (Polyoxymethylene, Delrin, Celcon, Duracon) that softens at 121°C and melts around 162-175°C.
If that Coghlans spoon is made from Lexan (I have my doubts, the package says Duracon and it looks like Duracon), it starts softening starting at 128°C and melts around 155°C.