Splinter of Loratta + Stomping Ground bug

When using the Splinter of Loratta I noticed the stomping ground shockwaves weren’t proccing poison.
That would be fine however if you give yourself general % chance to poison increases suddenly the shockwaves do poison.
Again this would be fine if it didn’t inherit the always poison on hit from the spear and having general % chance to poison would give you a single stack however I can get dozens of stacks of poison which are coming from the spear.
In which case the stomping ground support should also inherit the always poison on hit because of the wording or it shouldn’t get the always poison on hit and it shouldn’t get infinite stacks either.
Seeing as the thorns supports inherited the always poison on hit I would assume stomping ground should to.

“Any number of Poisons from this Weapon can affect a target at the same time.
Always Poison on Hit with this weapon.”

So TLDR, the first line is working with the stomping grounds shockwaves if you can get chance to poison from somewhere else.
The second line isn’t working.
Both refer to “this weapon”.