At this point of the application cycle, I'd take any acceptance I can get. Look at it this way, what if you pass on the acceptance to BCOM and never get pulled off the waitlist at Touro this cycle? How bad do you want to get into Touro? Are you willing to wait another year, go through the application process, to maybe get into Touro?
The only downside I see is losing the deposit ($3k) to BCOM if you end up getting accepted at Touro. There are really no repercusions, you can withdraw your acceptance to BCOM up to the time when school starts if you do get accepted to Touro.