Hussar
Legend
then it's wrong to think they're doing the same thing in both editions. Some variable must be different. The constructive thing to do is to figure out what that might be. If I were you, I would start by exploring this "illusion of choice" phenomenon; it seems a likely suspect.
Honestly? The most likely culprit is simply presentation. 4e powers look samey because they were formatted in a very specific way. So, yeah, it's easy to get the perception that they are all the same. 5e powers are written in natural language paragraphs, so, in order to actually know what the powers are, you actually have to read the paragraphs. And, since we're wired to read that way anyway, it flows naturally.
IOW, the perception is based on presentation, not actual fact.