Ultranomad your idea looks like a solution in search of a problem. You mention a single incident a decade ago which you cannot track down. Not really a concern. On the other hand, 40% of TCAS RAs are not followed properly. TCAS/ACAS is now a mature technology and a massive amount of feedback from the real world has gone into the latest version. The only common problem left is crews that cannot or will not follow the RA, putting both aircraft at risk. Instead of creating an unsafe homemade procedure and then inventing dubious strategies to mitigate the risk,
follow the RA. In the vanishingly unlikely event that it turns out to be from equipment failure it will be short lived and no harm done. If it causes an RA with other nearby traffic, they will hopefully also follow their RAs and no harm done.
Safe Handling of TCAS Alerts | Safety First (airbus.com)