Hamada, why do you start an argument in every thread you make?

In ARR they added a feature wherein you can't get hit by AoEs while interacting with a gathering node or if your line is casted as long as the enemy has no aggro on you, this is a fact.

If you had the node window open and you got hit by an AoE then you had aggro on the monster, there are no ifs or buts, that's the only explanation, stop trying to argue otherwise, the feature will not disable itself just for you. If you had aggro then you didn't have stealth when you interacted with the node.

On deep vigor, I've used it when the node has bonus hits, so that by default means it has its uses.

Solid reason has a very good use, to "heal" a regular node, since you can leave the node when its 1 hit away, recover GP and heal the node to keep gathering from the same node. What's the point of this? Gathering hidden items like grade 5 carbonized matter, on top of what was mentioned before

If you don't like to use them no one is forcing you to use them, but other people do use them.