A technical screening can be handled in a ten-minute phone call for free - with the dignity of the applicant intact.
I take issue with any hiring system that attempts to narrow the field of view of candidates. This includes any single-number "scoring" system, as well as hiring cultures that focus on single methods (e.g. "puzzle questions") to the near exclusion of other hiring criteria. If your organization is doing any of the above, it's shooting itself in the collective foot.
The really hackerish stuff can't be tested for in a format like this.