Even tide jade, and its botany counterpart were only included later, to offer a collectible gathering platform that is not tied to fairly tight timed window. While any gatherer who's figured the collectable system out can use the timed nodes as they please, the untimed ones offer a sort of practise ground for that particular interface where you can both, take your time to read the skill descriptions and try again in reasonably short while if you botch it some. With needing only 450 collectability for red scrips, they also give a chance for those new gatherers who can't afford the crafted equipment on MB to get their hand on red scrip parts, even if they are a slowly grind.
