If you look closely at the Agisoft test, you will see that it does not exceed 35W until first dropping under 35W, and indeed the average power consumption still does not exceed 35W after the sustained 35W period.
Therefore the assertion that the 5980HS cannot have been exceeding a 35W average load by very much over a 1000-3000 second long test is correct. As you can see after the 300 second initial turbo period the 5980HS is not averaging much than 35W, while the M1 Max is averaging much more than that for multiple sub-tests.
Therefore the assertion that the 5980HS cannot have been exceeding a 35W average load by very much over a 1000-3000 second long test is correct. As you can see after the 300 second initial turbo period the 5980HS is not averaging much than 35W, while the M1 Max is averaging much more than that for multiple sub-tests.