陆谷孙钦定弟子朱绩崧的《英汉大词典》第三版终于出了

critical acclaim是个固定搭配，只有“评论家的赞赏”的意思。 approval and praise from critics (= people whose job is to give their opinion about movies, books, music, etc.
):

因此，critical acclaim不能表示其他意思，不能表示激赏。