If they're able to toss 30% of your pay into a tax advantaged account that incentivizes long term holdings, that seems like an ok alternative to FERS. But I do think you should look at the numbers for life expectancy, potential risk from down stock years close to retirement, and the impact of low paying years on your retirement for those stuck in low levels for the first decade of the career when compounding interest makes the biggest difference. After we agree to go full TSP, then we are also up against changing the TSP maximums every year to increase our pay. These are all non issues with FERS. Is it worth it to probably make more money? I think that's a conversation that NATCA should have with the membership if it's on the table, because it will impact different members differently.
On forums to share and learn different perspectives, and I hear what you're saying and agree with some of it, even if I don't think we agree on the right course of action. I wouldn't say the sky is falling and the world is going to end if we switched to cashout/all benefits into TSP, just don't think it's the better of two good options.