While reciting Birchos Hatorah on Erev Shavuos, one may clearly stipulate that his brachos should be in effect only until the next morning. In this case, he may recite the brachos on Shavuos morning even if he did not sleep (Keren L’David 59 and Luach Eretz Yisrael quoting the Aderes, Piskei Teshuvos 494:6).
If no person who slept is available, many poskim rule that the brachos of Elokai Neshama and Hamaavir Sheynah may be recited even by one who did not sleep (Shulchan Aruch Harav 46:7; Kaf Hachaim 46:49; Aruch Hashulchan 46:13; Misgeres Hashulchan 2:2).
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I wonder why this would not be a bracha she’einah tzricha problem, like making a tnai that the birkas hanehenin is only on the apple but not on the orange.
#1 – Maybe b/c we say bircos hatorah anew every morning, and by Shavuous there is a shaila about what we should do.