I think we must be using
very different measures of Frontier's involvement in activities and what we consider "minimal" here - though I certainly don't disagree that the community did a lot more!
For Premonition - and this is just the stuff I can remember as being obviously visible - setting up the various Dynasty sites, the Zurara, the various POIs in Tionisla, Teorge, and elsewhere, running the exploration CGs, posting and translating the various Galnet articles, adding custom multicrew options for the final event.
I would be thrilled if Frontier got minimally involved in any of the community events I participate in nowadays, by those standards

Everything else on the list I was replying to was a success as a community event with Frontier contributions somewhere between "none at all" and "a lot less than that".
Premonition I'd put more alongside Dangerous Games, or the Colonia Expansion Iniiative more generally - absolutely reliant for its success (and it still being talked about and having consequences today) on the community/ies picking it up, getting invested in it, and doing most of the work in organising and publicising ... but also not something that the community could have done unilaterally in anything like its final form.