You are yourself re writing history.
At that time, Eustace's overall record was poor. In a fresh season after a full pre season he obviously then showed himself as a very good manager, unlike Ismael so far. But at the time, he was struggling.
Notice how no manager doing well has his record split into home and away. At the time, Eustace had an ok away record but his home record combined with that meant that his overall record was poor.
If you split out Ismael within the inflexible argument that we are bad at home and good away, that suggests that we would level out right in the middle. The fact that we arent suggests that such an implication is misleading.
Splitting into home and away is partly flawed because teams on average pick up more points at home than they do away. Our away form is 6th best, so its certainly above average. Our home form isnt below average, its truly woeful, 2nd worst, 2 points less than a point per game. If we had collected the points we have away at home, it would actually be the 17th best rather than the 6th. But by saying bad at home and good away, it makes us look better than we actually are doing.