The main problem I see with "player agency" against CGs is, that there is simply no functioning gameplay loops to allow this in a way that is not extremely one sided.
The way lockdown and CGs work is simply not compatible. Without "god modding" the CGs would simply not work, allowing very few players to dictate the gameplay for a lot of players.
There's a trivial way - without "god modding" - to prevent lockdowns at a trade CG: add a bounty hunting CG alongside it. People handing in bounties for that will naturally add a lot of upward security pressure, and keep the security state stable.
A slightly less trivial way - one which requires "player agency" rather than Frontier railroading players to do it anyway - is for players to pretend there's a bounty hunting CG on even when there isn't. (The last Colonia trade CG did not have an accompanying bounty CG, so a few of us did a bit of quiet BGS manipulation to ensure that a Lockdown could not occur until after it was over, in between trade runs)
There's also a way for players to complete a trade CG
even if there's a Lockdown on, which for a CG like this one with relatively low cargo amounts is fairly straightforward (it would be incredibly unpleasant in a Cutter-full bulk CG). Lockdown
doesn't close the black market, so two players collect some guardian materials each, then jettison (not abandon) it for the other player to pick up. They would then hand the (now officially stolen) materials into the black market, where they contribute towards the CG. This would also add more "community" to the "community goal" if players were cooperating to achieve it rather than just relogging in Solo to maximise collections. Or you could just steal the Guardian materials from the relevant sites.
Lockdowns - and especially not potential Lockdowns - are not a "that's it, everyone go home".
I know what you are saying but at one point Zende partners went from 81% ish and should have been Lockdown pending to
this.
That looks more like a bug than anything else, since it shouldn't be
possible for a faction to be on <1% influence but still be a normal faction.
I'm guessing maybe related to the megaships jumping around - this I think is the first (pair of) jumping dockable megaships to be owned by a faction which also has other assets, their first attempt to actually do the jump this morning actually failed, and Zende Partners are having similar influence-related weirdness in the endpoint at Zende as well where there'd be no need to clear a lockdown ... but the intermediate station in Wregoe which doesn't have a megaship is fine.
If you look at the Inara graph -
https://inara.cz/galaxy-starsystem/141310/ - you can see the values flickering between normal and abnormal over the last few hours, which looks like it may be a propagation issue across the various servers. They seem to be finally stabilising at "normal" now.