Resumes are like sales brochures, but for applications you should follow the instructions, see https://www.thebalancemoney.com/do-you-have-to-include-all-j....

There are many tech jobs out there that just ask you to send in a resume and cover letter and answer some questions. Saying it's technically possible to get an interview from sending out an unfocused 5-10 minute application to a big corporation using something like Taleo is not a strong argument in itself to do that.