360Learning Sr Business Development representative interview questions

first call was a screening call with a recruiter and it was smooth and everything was clear. Next, we moved on to having an interview with the hiring manager. Clear, smooth. I was well-prepared. 3rd round was a call with a team member. I asked lots of questions about their day-to-day and tried to collect as much info as I could. 4th round was a role-play and a task with the hiring manager and ABM manager. I was friendly, very open and natural. I received lots of positive feedback down the road but eventually received an email stating that "they are filling the role internally, mainly since their current BDRs know how to articulate their value prop best." Well, I'm quite disappointed because odds are really against an external candidate when it comes to articulating the value prop. I figure this is why companies offer onboarding, training, ramp-up period etc. The decision shouldn’t be made on who is better already, but who has the potential to be better. I'm really surprised and disappointed that I was competing against an internal candidate in terms of product knowledge but not the skill set.