Arachnid Snare when poisoned - only applies snare after enemy action

For the arachnid trait that applies a chance at snare when poison damage is taken - I feel that given the poison damage is given at the start of the turn the snare effect should be applied before the enemy can take an action as opposed to letting the enemy take a turn then applying snare (as it is now). Not sure if this is a bug - but it isn’t how I expected the trait to be applied based on the description.