Backer updates are regular and informative.
Content has been consistent with what i would expect for each phase of the lifecycle and has ncluded photos and vidoes. These have shown, not just talked about, discernable progress in the development of manufacturing tooling and processes, in the level of completeness of the various pre-production iterations of the bike (including one extended and in-depth video of a near enough final pre-production bike) and in the manufacture and sourcing of components in readiness for assembly. They have also included some assurances on the financial health of the project.
Backer updates are also frustrating in that they offer only a partial picture of the status of the project. In particular they offer insufficient information to assess likely timelines for delivery of backer bikes and indeed deliberately shy away from committing timelines. Undertandable given the track record of poor estimation. When they do indicate timelines, these invariably slip, for depressingly predictable, but therefore also credible, reasons.
These updates do not of course constitute independent assurance of the rideability of the bike or the delivery or financial status of the project, but then I would not expect them to.
Assertions that the project has failed, will fail or is highly likely to fail, purely on the basis of lack of access to backer updates and the passage of time, are as baseless and misguided as assertions that the project will certainly deliver.
It continues to progress, albeit slowly and there appears to be no reason to think it is any more likely to fail than it is to succeed.