Why Stormheim didn't work as an excuse to start the war

[Amadis-draka (Amadis)]

@Mernna-moon-guard

Anduin reprimanding Genn at some point for it, or at the very least inquiring about it.

Genn actually did get reprimanded, but it was pretty much just a slap on the wrist:

@Irenaus-wyrmrest-accord

In Before the Storm, Anduin remembers (or the narrative mentions, I forget) that he ‘forcefully rebuked’ Genn and Rogers for going against his command.

@Irenaus-wyrmrest-accord

Sky Admiral Catherine Rogers was also present. Anduin had similar
sentiments toward her as he did toward Spymaster Shaw. Anduin
respected both individuals, but his relationship with them wasn’t
comfortable. Rogers was too thirsty for Horde blood for his liking. He
had forcefully rebuked both her and Greymane for taking a recent
assignment much further than he had ordered. But the Alliance had
needed Rogers’s hawkishness in the war, and Mathias protected the
innocent in his own way.