Vaal Side Areas Nodes

I've been playing ssf this league and needed to farm Uber Atziri for the Trial of Chaos achievement. So I allocated all the nodes in the atlas tree that could help me get there: For Love of the Queen + 3 Vaal side Area Chance which gave me 10% chance of Vaal Side Area being in my maps and 20% chance of it being an Alluring one.

I ran some maps this way and got no Alluring Vaal Side Area so I decided to do an experiment and control some variables.

I ran 56 t16 Wharf maps with a Sacrifice fragment, a rusted/polished Bestiary Scarab, a rusted/polished Divination Scarab, a rusted/polished Reliquary Scarab and 4 random sextants.

I also had Trial of Glory + 3 Labyrinth Trial Chance allocated so I would have another 10% mechanic to compare the vaal one to.

The Alluring Vaal Side Area (AVSA) did not proc, the Trial did proc once during this 56 maps.

I've had 2 AVSA this league both came from Shaping the Skies notable, the Vaal points on the tree feels like the worst ones to get in any point of the league, there is no reason to get them, I did 3 blueprints and got the necessary mortal fragments to do Uber Atziri 2 times and got the key to the trialmaster.

Even though the Trial node is really hard to proc it feels worth it, the Uber Labyrinths have good rewards and I always pick those nodes as a ssf player, the Vaal one takes forever to proc and can literally drop 1 mortal fragment which is absolutely not worth 3/4 points in the tree.