I'm not sure what you mean about JHU, but the committee has already sent out official interview invites. If you did not receive this invite, it means you did not pass departmental screening. Even if they wish to fund someone directly from the 1st year, PIs cannot take someone in if the applicant did not pass screening. Don't be discouraged if this is you, because apparently the department is not funding a lot of students this year. I think all BME programs across the country are short on funding this year for some reason (especially those in California), while the number of applicants has significantly increased due to Covid causing employment issues on a global scale.
I don't know of anything on CMU BME, but I wish you the best of luck. For those who have gotten into at least one PhD program this year, congratulations. You should feel happy and excited about your acceptances instead of dwelling on your rejections. I really think we need to be a glass-is-half-full type of person about grad school admissions.
Despite this year's competitive admission cycle, I still believe that rejections are simply redirections. Who we meet along the way and the lessons we learn are much more important than the program itself, imo. Let's make the best out of what we are offered.
With that said, I think a lot of schools have yet to send out their decisions. Here's to getting admitted to a program where we meet genuine and talented ppl.