I play Arrow, but really badly, haha. I don't try and zone with him, I just get fucking confused when I'm in and do everything wrong.
I'm not trying to say that people actually do get hit by freeze arrow from across the screen more than once in a blue moon, but it's important to consider as a threat in that match. It does take away options when it's available as a threat because there's certain stuff that's just going to be a bad idea, but DS just doesn't care what you have loaded.
Also, while you can dash after DS shoots, he's still got the ability to stop you. I usually catch people mid-dash or get them trying to move too early with MB guns. It's an oversimplification to say block and dash.