True, but they normally arent this far off.
HGRN claims that they outperform transformer for 1B parameter model trained on the pile. HGRN performing 8ppl worse suggests that its useless.
My experience - many are far off and most of the time published tables of different papers are hard to compare. If you make the assertion here of these results to be flawed, I would like to see more substance (code, reproduction,...). And for balance, for the same reason, hard to verify the accuracy of these results without further insight.