I think quite a few characters have a longer range than their acquisition range. I believe the reason it was that low so they wouldn't auto-acquire every single thing that ran past them, which is probably the worst behavior.
That may be the intention, but it seems that Warcraft III engine automatically caps Range to be less or equal than Acquistion Range. You can test with this simple experiment.
Kurumi Acquistion Range 3000, Range 3000 - Kurumi's attack range displays as 3000 in-game and can attack enemies from multiple screens away.
Kurumi Acquistion Range 500, Range 3000 - Kurumi's attack range displays as 500 in-game and she can't do the above.
So basically Summoner just has gimped attack range for no real benefit, while Gunner will actually acquire targets that are slightly further than she can target.
Miranda was one of the characters that I could never picture what she was supposed to look like outside of her WarIII model so I guess more art of her is good. But... isn't she NOT in Book 6 outside of Free Mode? Will Hikaru be getting his Soul Shift ability back?