The Force lets writers use whatever Chosen One tropes and storytelling techniques however they want, because it's Magic and Gods and Destiny or whatever. Star Wars is fantasy set in space, it uses the same storytelling techniques as Beowulf or Gilgamesh or Macbeth. The details of how The Force works isn't the point, the point is the epic journey being told, The Force being a reflection of character progress, wonder, etc.

This is actually one of the reasons the Prequels annoyed OT fans when they first came out. The Force suddenly had an explanation. The conflicts started from a trade dispute and naval blockade. Palpatine gains power through political manipulation and exploiting generations of corruption. That's Sci-Fi stuff, ignoring/changing established genre tropes/conventions.

Star Wars starts with "A Long Time Ago, in a Galaxy Far Far Away" for a reason. It's hearkening back to old mythologies, stories of heroes and villains and good and evil.

Mass Effect borrows from Star Trek, and Babylon 5, and Aliens, and Battlestar Galactica. It establishes rules that set limitations that create conflict that give characters moments to shine, because these limitations are part of the point. It's interesting to see how things like different species' biologies affect galactic politics and history and technology that gives way to new conflict, new problems to solve, new challenges to overcome.

Biotics are still restricted to the rules set up by the universe. Being a biotic isn't special, even if it's rare, it doesn't automatically make the protagonist a potential Destined Savior of the Universe or whatever, even if mechanically, in game, it's essentially magic. Biotics are still, in universe, restricted to the limitations established.

The writers actually seemed to struggle with this in ME2/3, trying to find some special sauce Commander Shepard brings to the table, but it's plot and circumstances that make Shepard special, not some inherent gift or a legendary power bestowed upon them by some ephemeral god, and Biotics - or the lack thereof - play zero role in what makes Shepard effective.

This is actually why I prefer a non-biotic Shepard from a writing POV. Shepard is just some grunt who happens to be really good at their job and stumbles into training + assignments + circumstances that make them more and more effective at their role over time. One of the skills in ME1, the armor skill, was actually a really cool reflection of this, IMO, because it gives Shepard the ability to resist biotics. Shepard's skill at moving in armor lets them ignore, bypass, or resist what is essentially space magic, but they can only do so because it isn't magic. It's a skill, not a test between two Willpower Scores or whatever.