It's even easier to go train at a good MMA gym, or get a MMA fighter to come to your school for privates (which is quite inexpensive when you spread the cost).
No, the ONLY way to get rid of bullsh1t (and secrecy is part of the bullsh1t) is through HOW YOU TRAIN. Sound athletic )"alive") training exposes bullsh1t.
Competition is often the end result of that training, but it's not the competition that exposes the bullsh1t, it is the training process. It's not a single boxing competitive match (a small sample) that exposes bullsh1t, it is the hundreds of hours of sparring in training (the HUGE sample) that exposes it.
On its face that sounds good, but is really not a very good idea. Using this reasoning, tai ji should have its own full contact competitions, every form of TCMA should have theirs, every karate style theirs, etc. So what you end up with is tons of different "competitions", with lots of poor fighters competing, etc. While this may be one way to over a very long time develop an art, there is an easier way. Good, proven fighters already exist, venues to meet and train with them already exist.
Good, sound athletic training will refute the whole "secret skills bull". The Dog Brothers' motto,"If you see it taught, you see it fought" exemplifies this -- imagine if a WCK instructor actually ONLY taught what he could consistently and successfully do while fighting/sparring. How many masters and grandmasters would there be?
And then you end up with bad 80s karate-style tournaments like Phil's guys compete in -- where scrubs "fight" scrubs. And then successful scrubs use this as evidence that they are "good." This is precisely what the karate guys did in the 60s and 70s.
We don't need to reinvent the wheel -- all we need to do is begin to train like all good fighters train, and to teach like good fighters and fight trainers teach. To do that, however, requires that we actually go train with good fighters and fight trainers.
BTW, it's ironic that someone who will never go and actually train with good fighters (yet will teach their arts without any training) complains about secrecy and "ego". Why not go train with good fighters except to preserve your precious ego?