My thoughts on this are that it's not necessarily that people on Tapas aren't into Superheroes as a concept. Have you seen how many My Hero Academia fan comics there are, and how fan comics of that superhero series are probably some of the most numerous and popular on the site? Also statistically since the Marvel movies are some of the most popular movies that exist, it's likely a significant proportion of the people who use the Tapas app like and watch Marvel movies. So yeah, I really don't think anyone her is averse to the idea of a comic about a bunch of people in a modern setting who have special powers, use those powers to try to do good and wear colourful and cool unique costumes.
BUT I would guess that people on Tapas, being mostly young and female-leaning, interested in comics focused on characters rather than physical action, are probably less interested in gritty and very masculine superhero stories, but will probably happily enjoy a story about superheroes that focuses on how the conflict affects their feelings and relationships if the art is pleasant and appealing. Something like Watchmen, with its themes of eighties politics, gritty art and grim, very masculine characters who are almost all middle-aged white men and quite explicit violence might not appeal to the audience here. Something like Young Avengers on the other hand, with its young, diverse team that includes LGBTQIA+ representation, discussing modern social issues and politics with a softer, more modern looking, less aggressively masculine art style and focus on character dynamics? I could see that doing well.