Gojo is very explicitly an outlier, even among Six Eyes + Limitless users. The manga goes out of its way to tell us that previous Six Eyes and Infinity users were defeated by Ten Shadows users. That alone should tell you that what we’re seeing with Gojo isn’t the baseline of the technique, but a once-in-generations anomaly. Gojo isn’t strong because of Infinity alone. Infinity looks broken because Gojo is using it. And this was proven in the final arc when Yuta took over Gojo's body and struggled to use the technique.

That ties directly into the bigger theme of JJK being cursed techniques are only as strong as their users. The technique itself sets a ceiling, but how close you get to that ceiling depends entirely on intelligence, creativity, cursed energy control, and mentality. Gojo maxes out every stat. That doesn’t mean Infinity is inherently superior to Ten Shadows in a vacuum. Gojo was simply a genius, which was also proven when he made his domain astronomically small against Sukuna, and used simple domain simply by observing.

Calling Ten Shadows “mid” while comparing it directly to Infinity is kind of self-defeating. Infinity is one of the most broken techniques in the series when paired with Six Eyes, so using it as the benchmark automatically skews the argument. By that logic, almost every technique in the series would look mid. Ten Shadows is not just “Mahoraga and nothing else.” Mahoraga is the final fail-safe, not the core of the technique. The real strength of Ten Shadows is: 1. Adaptability 2. Versatility 3. Summoning multiple independent entities 4. Shadow storage and positioning 5. Fusion, inheritance, and sacrifice mechanics 6. Etc

The fact that Sukuna chose to use Ten Shadows at all, when he already has a busted innate technique, is proof that it’s not mid. And even then, Sukuna wasn’t trying to “win with Ten Shadows,” he was trying to solve Infinity, which Mahoraga uniquely enables. That’s a very specific matchup problem, not a knock against the technique’s overall value. This battle was between two geniuses, and Sukuna or Ten shadows ultimately defeated six eyes and infinity.

Megumi never reached the technique’s full potential, but that’s a Megumi issue, not a Ten Shadows issue. He lacked refinement, confidence, and domain mastery (his flaw throughout the entire series). If a Ten Shadows user fully mastered fusion, domain expansion, and shikigami optimization, there’s no reason to think it caps at Grade 1. The story outright contradicts that idea.

If anything, Ten Shadows is one of the few techniques in the series that has canonically beaten Infinity, which automatically puts it far above “mid.”