There is nothing much to criticize; it is understandable and acceptable.
厚深重；非非议，否定。不能过分责备。指说话做事虽有缺点，但还有可取之处，应予谅解。
《汉书·王莽传中》莽怒，免英官◇颇觉悟，曰‘英亦未可厚非。’”
His decision to take a break was understandable, given his stress; it's无可厚非.
Learn the next connected idiom: 无可厚非 (wú kě hòu fēi) → 非同寻常 (fēi tóng xún cháng)
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