It has recently been proposed by Kanno, Tomikawa and Mishima that novel Raman spectra for amorphous ices show that the low-density form (LDA) resembles ice whilst the high-density form (HDA) resembles lithium chloride glasses. The purpose of this Letter is to stress that the differences between LDA and I-IDA are not this great. In particular, a key difference is that LiCl glasses contain a large number of vacancies, whilst there are none in any of the amorphous forms of water.