וְשָׁפְט֣וּ אֶת־הָעָם֮ בְּכָל־עֵת֒ וְהָיָ֞ה כָּל־הַדָּבָ֤ר הַגָּדֹל֙ יָבִ֣יאוּ אֵלֶ֔יךָ וְכָל־הַדָּבָ֥ר הַקָּטֹ֖ן יִשְׁפְּטוּ־הֵ֑ם וְהָקֵל֙ מֵֽעָלֶ֔יךָ וְנָשְׂא֖וּ אִתָּֽךְ׃
They shall judge the people at all times; and it shall be, that every great matter they shall bring to you, and every small matter they shall judge themselves; so shall they make it easier for you and bear the burden with you.
Compare with Exodus 18:26:
וְשָׁפְט֥וּ אֶת־הָעָ֖ם בְּכָל־עֵ֑ת אֶת־הַדָּבָ֤ר הַקָּשֶׁה֙ יְבִיא֣וּן אֶל־מֹשֶׁ֔ה וְכָל־הַדָּבָ֥ר הַקָּטֹ֖ן יִשְׁפּוּט֥וּ הֵֽם׃
They judged the people at all times: the hard matters they brought to Moses, and every small matter they judged themselves
Why is the word "great" used when Yitro is advising Moses, but the term "hard" is used when describing what happened? Is there a difference in meaning or nuance, here?