We could tweak the question. Add qualifiers like "hostile".
Which only pings organizations that are hostile right now.
Doesnt ping those that were hostile, or will be hostile in the future.
Basically, what BronzeTongue said. Its wasteful.
Tiz's guide for why you don't need to worry about Maria, but definitely need to worry about Weather Magic.
1)There is a lot of inertia in the earth's weather systems, more than a single mortal can seriously impore.
Weather magic repercussions explicitly cap out at weeks or months at the very high end.
And without 5/6 dot Weather Magic, you explicitly dont have the mojo to even get that far.
2)The Fae courts explicitly have a role in weather regulation in the Dresdenverse.
Blood Rites opens with Thomas asking Dresden about, well:
Blood Rites c2 said:
I kept on smiling. "Thomas, you don't really know me. Not at all."
"I think I do. I've seen you under pressure."
I shrugged. "Yeah, but you see me what? Maybe a day or two each year? Usually when something's been warming up to kill me by beating the tar out of me."
"So?"
"So that doesn't cover what my life is like the other three hundred and sixty three days," I said. "You don't know everything about me. My life isn't completely about magical mayhem and creative pyromania in Chicago."
"Oh, that's right. I heard you went to exotic Oklahoma a few months back. Something about a tornado and the National Severe Storms Lab."
"I was doing the new Summer Lady a favor, running down a rogue storm sylph. Got to go all over the place in those tornado chaser geekmobiles. You should have seen the look on the driver's face when he realized that the tornado was chasing us."
"It's a nice story, Harry, but what's the point?" Thomas asked.
When Mab got involved in Small Favor, a major blizzard enveloped Chicago, making it easier for Dresdrn to evade the Summer fae hunting him. After the invasion in Battle Grounds, Chicago went through a bout of very mild weather after Dresden convinced them it was a good idea.
Hell, when the Heirs of Kemmler were messing around, storm weather hit Chicago for the Darkhallow and a tornado ripped though the ritual site.
3)Note that we've seen Weather Magic in this very quest.
When we were coming to Dresden's home after rescuing Cindy and a fog suddenly started creeping in around Dresden's neighborhood. On a summer afternoon/evening. And Gard had to dispel it.
There's lots of applications of low-level weather magic that arent going to do anything to the wider system.