TPG Grading for Large Cents (compared to EAC Grading)

Has anyone else here read the article in the most recent Penny-Wise (Official publication of Early American Coppers, Inc.)? Interesting conclusions based on the coins/data studied, summarized here:
"If your coin grades AU50 or below by EAC standards, it probably doesn't matter to which service you send it"
"if your coin is an EAC AU55 or higher, you will get a higher grade from NGC than from PCGS"
"If your coin grades AU50 or below by EAC standards, it probably doesn't matter to which service you send it"
"if your coin is an EAC AU55 or higher, you will get a higher grade from NGC than from PCGS"
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Comments
EAC 6024
RMR: 'Wer, wenn ich schriee, hörte mich denn aus der Engel Ordnungen?'
CJ: 'No one!' [Ain't no angels in the coin biz]
It seems that for coins graded 1-20, oftentimes the EAC grade equals the slab grade. This is rarely the case for 40+ coins.
I would, however, chime in that not all 'EAC grading' seem to be consistent either, as there have long been differences of
opinion, as might be expected. An example is the same coin may be listed higher or lower in the CC depending on who is doing the
grading. Beyond these rarified examples, compare coins graded by Bob Grellman, Tom Reynolds, and Greg Hannigan. Some EAC'ers
appear to be a lot stricter than others.