Superman absorbing the galaxy-busting anti-sunlight isn't remotely galaxy level. Let me put it this way: A cup of diesel is 200 grams. If you drank a cup of diesel, it will poison, scar, and rip apart your insides, but you won't explode. If a cup of diesel combusted, that would equal 8.8 megajoules or about as much power as a modern-day rocket launcher. If a cup of diesel burst at light speed, that would equal about 4.3 megatons of TNT. So if a person drinks 200 grams of diesel fuel, they have drunken enough fuel to destroy a city, does that make them city level? The same is the answer for Superman; he is absorbing anti-sunlight which he can poorly but barely metabolize and thus prevent a greater explosive reaction. for the hell of it I will make a rough calculation. Half of galaxy level is 5.26e65 joules is half galaxy level. 5.26e65 joules/c^2 = 5.85810255e48 kilograms 5.85810255e48 kilograms The body metabolizes fat at 37 kilojoules per gram, fat has the highest metabolization energy per gram of any food for people. 37 kilojoules per gram * 5.85810255e48 kilograms = 2.17e56 joules, 1/10th shy of 4-A That is playing it very loosely with calculations, is proving a high end, and we don't numerically know how Superman catalyzes and metabolizes sunlight, let alone anti-sunlight which doubtless he'd metabolize less efficiently and energetically. This is ignoring that this is a total outlier for the time where he consistently nets large planetary to dwarf star-level feats. Also "half a galaxy" can be potentially chalked as hyperbole because again that's equal to 5.8581e48 kilograms of sunlight which is almost 30x heavier than the Laniakea Supercluster of Galaxies.
https://upload.wikimedia.org/wikipedia/commons/thumb/8/81/07-Laniakea_(LofE07240).png/220px-07-Laniakea_(LofE07240).png Comics yes, but this is so ludicrous it wouldn't even make sense for comic standards.
Also most universal feats weren't dismissed as outliers as much as they were wholly debunked. It is dishonest to assume we concluded skyfather or cosmic cube level feats as outliers.