You press z, type a few letters and then hit tab until you get the thing you want. It's not spatial. If you use ctrl-r frequently it's similar.
It's not spatial because it's text-based but a similar problem occurs if it can surprise you about which location is going to be used for each input.
There may be more clashes, like picking up on filenames instead of directories.
Typing `z res` or whatever is also a bit faster than hitting ctrl-R then `res`.