Yes multiple people get into schools without a committee letter, it matters more if you go to a small school. I went to smaller undergrad where my premed advisor knew the admission people at most DO schools so if you didn't go with the committee letter then it was definitely a bad mark because it kind of meant that they didn't think you would be a good fit. If you went to a big undergrad then it doesn't really matter if you get the committee letter.
What's a small school in your view? Like liberal arts college small?