The physical security industry should take the same approach as the networking industry. Be transparent with your flaws, educate your partners and those who deploy your systems, and earn the trust of your end users. Cisco is a perfect example of such a strategy.
On the Cisco web site, you can easily identify bugs and other issues when they exist. The available documentation is outstanding.
The Cisco certification program has turned out an army of well trained installers and engineers.
Almost all end users will trust a Cisco solution. The products are not always perfect, but the support and trust is there.
The current practice of hiding issues within the physical security industry, will always be a barrier for gaining trust from dealers and end users.