I hate forks as much as the next person (compared to spoons and knives, forks are far worse at performing their primary job), but I'm not sure about these pincers. For one thing they look more difficult to clean (stuff would get stuck at the base).
In a more general or survival setting I’d choose a knife.
A fork is arguably most useful in conjunction with a knife because it's generally easier to hold foods for cutting with a fork than with a spoon.