וְנִשְׁאַרְתֶּם֙ בִּמְתֵ֣י מְעָ֔ט תַּ֚חַת אֲשֶׁ֣ר הֱיִיתֶ֔ם כְּכוֹכְבֵ֥י הַשָּׁמַ֖יִם לָרֹ֑ב כִּי־לֹ֣א שָׁמַ֔עְתָּ בְּק֖וֹל יְהוָ֥ה אֱלֹהֶֽיךָ׃
Y quedaréis en poca gente, en lugar de haber sido como las estrellas del cielo en multitud; por cuanto no obedeciste á la voz de SEÑOR tu Dios.
Sforno
ולא ה' פעל זאת, “this was not what G’d did to you for not obeying Him,” so that you would still have hope to escape your fate by doing teshuvah. G’d scattered you to so many different places on earth that the total oblivion of the people through assimilation by inducements of the gentiles would not be likely. This was what Devorah meant when she said in her song in Judges 5,11 צדקות פרזונו בישראל, G‘d performed righteous deeds when He scattered Israel (instead of sending them to a single country into exile)