Moshe describes how the Meraglim came back with a good report and said that the land is very good. But only Yehoshua and Kalev said this, but the rest of the Meraglim said Lashon Hara! Why does Moshe suddenly make believe that Yehoshua and Kalev were the only Meraglim, and they only said good. A few Pesukim later, Moshe says: ˃ֲאָשְׂנ רֶשֲׁא 'ה ˃יֶק˄ֱא וֹנְבּ תֶא שׁיִא אָשִּׂי רֶשֲׁאַכּ א לא Hashem carried you like a person carries his son. We can suggest that when Moshe describes Hashem as if each Yid is the only one, and Hashem carries him like a father with a son, he expects Klal Yisroel to have this same mentality.
And a person with such a mentality who always feels extreme personal love doesn’t even hear the 10 wicked Meraglim. He only hears positive! As if Yehoshua and Kalev were the only ones. A true positive thinker who feels like a: ֵבּ ָי ן ִחיד “only son” to Hashem has no Makom in his head for Lashon Hara and negatives. It all goes over his head as if he didn’t hear anything!
Dovid HaMelech was notoriously like this. He was very trusting and soft and giving in. Just like he had Bitachon in Hashem, so was he a big Ayin Tova to people, and he loved to see only good (and indeed, people tricked him). Perhaps this is why in these Pesukim we have Yehoshua and Kalev mentioned separately. Moshe looked at each person as if he’s the only one in the world.
Perhaps this is why Moshe became: לוּקָשׁ ְכּלֵאָרְֹשִי לָכּ דֶגֶנ equal to the entire Klal Yisroel, because he truly believed in Chazal who say: ֶשׁ דָחֶאְו דָחֶא לָכּ בָיַּח םָלוֹעָה אָרְבִנ יִליִבְשִׁבּ רַמוֹל א זל ןירדהנס that every person is obligated to say: “the entire universe was created just for ME”. Indeed, this could be the trick of how Moshe became so unusually great; i.e., those who think that they are special, actually become special! And indeed, he wrote: םָדָאָה לֹכִּמ דֹאְמ וָנָﬠ הֶשׁמ שׁיִאָהְו ג בי Moshe was the most-humble person on the face of the earth.
Look how he called himself a special person, and: ז בי ךתולעהב אוּה ןָמֱאֶנ יִתיֵבּ לָכְבּ in all Hashem’s house he is faithful. For sure he felt like he was a: ֵבָּי ן ִח די only son to Hashem. He felt Hashem’s individual love more than others.