It’s not just fine, it’s absolutely necessary. I’m a firm believer that variation is at the heart of all great storytelling, and I think that applies to superpowers as much as anything else. 

Take the airport fight sequence in CA: CW, for example. 

Part of what makes the fight so much fun is that you have all kinds of different power levels going on – non-powered spies like Hawkeye and Black Widow, supersoldierish folks like Cap and Bucky, tech-suited guys like Iron Man, War Machine, and Falcon (to a lesser extent), Black Panther is somewhere in the middle of those last two categories, then you’ve got Vision and Ant/Giant-Man and Scarlet Witch doing all kinds of crazy shit, and then you’ve got Spiderman somewhere in between those last two categories. 

Thus, as the various fighters pair off in different combinations, you can show all kinds of different power dynaimcs: Ant-Man crawling inside of Iron Man’s suit or suddenly turning giant and grabbing War Machine and then getting ESB’d by Spider-Man, or Cap and Spider-Man having a shield vs. webs battle, or Scarlet Witch throwing a parking garage’s worth of cars at Iron Man, etc. 

Now imagine that same sequence if everyone had Superman’s power set. Imagine how boring and repetitive it would get, with all of these flying bricks punching each other through buildings over and over again.