Lu Xun's brushwork may not be called everyone, not a calligrapher, saying that it can't be measured, but it mainly depends on whose words you take or when you release them for reference. If it was the Tang Dynasty, Lu Xun certainly couldn't do it, but how does it compare with today's people and calligraphers?
Personally, I think Lu Xun's brush strokes still have some merits, such as statutes and fluent writing.