I think you need good color vision until they replace all the PAPIs and VASIs with systems which don't use color...but that's a lot of money. they would also have to change some signs and markings on runways and taxiways.

There are most likely better ways to test for it than the flip-cards; more operationally oriented.

I'm all for helping people out, but the current crackdown was in response to that FDX crash in FL...I don't think we can just gloss over the safety issues here, some of them are real. There are some people who can't be professional pilots for a variety of reasons, and severe color deficiency probably needs to be one of them. I do think they can do a better job of separating those whose deficiency really impairs them operationally from those who do fine flying but can't tell chartreuse from green.