Just because they score highly on tests, that doesn't mean they are Mary Sues. The tests are guides for inexperienced writers, as the best can easily pull them off.
There are also anti-sue traits, such as significant mental and/or physical handicaps. I'd say Doe is much less Sueish than Ugai, but Ugai in a tale of his own, telling the story of a long, gradual transition from basic slig to caring slig would not be sueish.
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