Thanks to Asko, I do now remember reading an essay by Thomson on the word graavan. I took dome interest in it because at about that time I gave a paper on RV 10.94, in which this word played a prominent role. This was in 2001 or 2002, at the Third International Vedic Workshop in Leiden.
In any case, I was not convinced by i\her paper, and in fact, as in the case of this recent paper in TLS, I was rather surprised that it had been published. I think that it was at about this time that I stopped reading JIES.
From the material that Asko has sent me I now see that Thomson also dismisses the Witzel-Goto translation. Another off-list email informs me that Thomson was likewise dismissive of Louis Renou.