Actually, after reading it a few more times, now I think they meant that all roles are included, not just those in the image (which seemed obvious to me, but maybe they wanted to err on the side of overexplaining).
On the subject of Sherlock vs Khan, though Sherlock may be the better strategist, Khan is more familiar with advanced tech, a better fighter, more durable and better at manipulating others. Khan would not struggle to crush any of Sherlock's enemies.
Still an impressive feat. The fact that you thought of improvements afterward does not diminish that you made a thing, with some amount of success, more sophisticated than anything 99.9% of humans will make in their lives.
People think immigrant refers to a person who chose to move. Since Superman didn't arrive on Earth by choice, he's not an immigrant. This is, of course, incorrect.
People think the term immigrant only refers to people who look "different" compared to what is common in the region. This is, of course, racist.
Ross Marquand has played Infinity Ultron, Red Skull, Han Solo, Indiana Jones, Wreck-It Ralph, Professor X and multiple super-powered characters from the show Invincible
My most charitable interpretation is that OP is suggesting that Sherlock Holmes is an alternate universe Doctor Strange, thus already covered by the Doctor Strange image.
The side that is doing actually good stuff doesn't need to use misinformation, but there'll be unaffiliated people spreading whatever kind they want on a platform that will have them
Only pedophiles wouldn't want it released.