It's different, look at the terminology. Your selection also includes fouls drawn and defensive actions which make up the total SCA formula. The maths also isn't right, the fractions from the total split into per 90 don't add up at all.
There's also multiple stats including through balls and GCA (completed live ball passes that lead to goals) that Eccles sits top of, which unsurprisingly hasn't made it into this conversation.
You say you are not discrediting Eccles, but that's exactly what you are doing. Someone posts a positive stat about him, and the same group of people come in and try to pull it apart, bending the stats as much as possible in the process to achieve said goal. If it was Sheaf in those stats, the response would be a lot different, as would the percentage of Kleenex tissues used in and around Coventry area.