I agree with you. If you can't be bothered asking me the questions in person, I can't be bothered answering them. That's the social contract.
I've already written a cover letter that responds to the points in the ad; if they can't prescreen sufficiently using that then they need to work on their ad.
Interviewing needs to be interactive because any decent job requires interaction.
[1] http://cream.hr/blog/why-the-hiring-system-is-failing/