Depends how bad you want to go to Howard. If you want to enjoy your summer before medical school starts without worrying about classes or this program, go with another school. If you really want to go Howard and/or see yourself benefiting from the program, then sure. They probably think you could benefit from the program given that medical school is fast-paced. The program would help you get in the mindset of medical school coursework. You have 8 IIs and 2 other acceptances so you will probably have plenty of options by the time April/May rolls around.