But why? - Tales of the Empire Reaction - Episodes 1 2 and 3 

Nightsisters fight and hide in the trees so logically you burn down the forest to flush them out and to deny any hiding spots.

To deny the New Republic access to some of the planet's resources. Read between the lines.

@@Heru_Iluvatar but that also denies her access to those resources too? plus, she had literally just massacred a new republic team and we know that they didn't send an invading force to take the planet, as ahsoka is the only one on corvus at the time of the mandalorian that's fighting the magistrate. her destroying her own resources is like the empire blowing up their own death star because the rebels might invade it. but for why?????

@@alfoxie Sigh....you know that because you've seen The Mandalorian, but she doesn't. She's acting under the assumption that the New Republic may send reinforcements.

​@@Heru_Iluvatar of course, but in that case that makes her decision making seem quite idiotic and senseless. She'd most likely be aware of the new republic's weakness and unwillingness to take threats seriously, hence why she's unphased by massacring a squad of them and an ambassador. If she was so worried about a new republic invasion to the point of destroying her own resources, why provoke them? From what we see in Ahsoka when she's captured by them, she's more than capable of being rescued almost immediately from a prison ship, clearly showing she's confident and unafraid of the new republic, yet you want me to believe she burns an entire planet worth of resources because she's unsure if the new republic will send an invading force, but doesn't just... not kill the ambassador??? you can pretentiously sigh all you want, it's just not written well