I do not foresee one-way video interviewing going away any time soon. Employers are always looking for ways to make their recruitment process more efficient, and if they feel this type of interview brings value, they will adopt it.
Getting Conflicting Advice About Resume Length? Here Is What You Should Do.
The purpose of the resume (or CV) is to get you an interview. So, how many pages your resume should be will depend on the information needed to help the reader decide if they want to interview you. That is why there is no magic number.