Why?
Arent conjurations non-attack spells?
It says cant be targeted or affected by non-attack spells
Beat me to It Zuberi!
A Conjuration is a non attack spell. Correct; then you cast it.
Once that conjuration spell resolved successfuly it became an object. An object, and this is the important part, is not a spell. Swarms cannot be affected / targeted by non-attack spells.
So you cannot ccast [mwcard=MW1J22]Tanglevine[/mwcard] on a creature with the swarm trait, that conjuration spell does not target swarms, but you can affect it with Etherian Life Tree, Deathlock, and the zone attack from akiros hammer since they're objects and no longer need to target the swarm creature for their effects to take effect.
An example for clarity is the ever popular [mwcard=DNI02]Burst of Thorns[/mwcard]
burst targets a vine marker, that vine marker makes that attack against a swarm. The incantation isn't targeting the swarm so good on that end.
While on the subject lets take a look at [mwcard=FWI04]Force Wave[/mwcard]
Wave does not target a creature, but a zone. However it is always a spell and never an object. So the swarm would not be able to be affected by Force Wave.