When building a roster (and any other time when not in a match) there’s no way to know how far a unit’s abilities can reach. How far does Grappling Chain go? What’s the area of effect of Axl Pyro’s Flamer? Right now you have to either find out in a game or navigate to the Try Me option, and then you’d still have to remember the range from there.
Since a unit’s speed is like their movement range, I hope it’d be a relatively simple addition to apply the same display for other ranged features.