Theyre not using the plot special action though, theyre plotting as part of an ability resolving
Spells with split second only prevent new spells and activated abilities from going on the stack until those spells resolve, but once the spell with split second resolves, you're free to interact normally with any other spells on the stack
Grim Haruspex, featuring Nargacuga Armor with a Hidden Eye Light Bowgun from Monster Hunter P2G/MHFU
It might be that theyve ran out of staples, or maybe theyre just disillusioned with the idea of homogenization when it comes to deckbuilding
She takes things in a wildly different direction and while she compliments Satya well, you're better off finding something else to do with her entirely rather than swapping her as the front Commander here
Ill also point out that green legendary matters is something that weve been getting a slow trickle of lately, with Kolvori, God of Kinship on my Cube bucket list, in a similar space with Mox Amber