Because the banner itself actually has nothing to do with CA at all. CA introduced a mechanism to alert users for varying things. And, as the data file that mechanism utilizes changes, I will not be announcing each and every new notification. Because this was a new feature, the 4 possible notifications at the time were itemized within the thread.
CA will only ever alert you for the "You must see this" type of thing based upon your installed environment. The ability to opt out is there, and the ability to dismiss any given notification is also there. The PSA was a last minute addition to that data file, and not everyone will ever see it, as it is tailored to user's system. Its fundamentally no different than the multitude of unsolicited emails that's been filling my inbox with how such and such company I haven't dealt with in years in now sanitizing their gas pumps daily (lol).
This mechanism is long over due within unRaid and IMHO is an outright requirement for an OS. The PSA, sure it's a grey area, but I'm not offering any apologies for it. And I would expect that the vast majority of computer users across the spectrum do not even know that the applications even exist.
Really. That's completely up to you, but if you do choose to uninstall CA because it can't be trusted, then I would also recommend you uninstall every other piece of software (docker apps and plugins) from your server. CA is 100% wide open on everything it does behind the scenes to protect you (and by "protect" I am definitely NOT referring to the PSA), along with it's code being completely view-able in a public repository unlike many applications available on any given platform.
I will however let you know that any possible future notifications are not going to be publicized within a change log, because they are all already listed here in the forums. The whole point of this mechanism was so that the notifications can be dispersed without an update being required to any given plugin or the OS.