dawn in early hokku or haikai

In my working wiki web collection of 980 Bashō haiku, I can only find one of today's nine single kanji for "dawn" —  旦 旴 昉 昕 倝 晗 暁 曉 曙  — and that kanji − 曙 − is there only once as such, and then once transliterated with the "akarui" kanji to form the kana expression "akebono" as in "akeru" (明ける.)

Were these kanji eschewed as being those of more formal Chinese poetry ?

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