Reply To: What did the mraglim do wrong? (non political)

I haven’t seen this in any meforshim, these are my own thoughts.
As far as I know, Eretz Yisroel is the only inanimate “object” on which it is assur to speak Lashon Hara. And that may be related to what Jakob was saying. Eretz Yisroel was created for Bnei Yisroel to keep the Torah, it is perfect for their needs for that purpose. To malign E”Y is therefore to reject that principle, which is harmful to the relationship of YIsroel-Torah-Hashem and shows tremendous ingratitude to Hashem. So I think that is why it is assur to speak L”H about E”Y, specifically.