Not sure, Russian procurement at this stage is very weird in what they are deciding. Upgrading BMPs to BMP-2Ms in some numbers, buying BMP-3 version when BMP-3M is out. But I'm pretty sure T-14s will be brought into production as declared, just I highly doubt it's going to reach the number goals anymore.
Well propaganda of tanks are done by all sides. I'd hype my tank up too if I made the M1A3 abrams. But in this context the T-14 is not only just a propaganda tool, the Russian military does actually want to field these tanks and replace alot of tanks with them.
These are all force multipliers to conventional warfare that happens. Of course Russia will use "hybrid" tactics as well as conventional tactics. War against NATO wouldn't be numerically fair at all for Russia at this current stage.
T-14 is a serious modernization effort, set backs doesn't make it unrealistic. Of course no one denies Russia still has to replace the aged up T-72B fleet it has. But keep in mind even with mediocre tanks like T-72Bs, locally Russia would for some time have superiority on the ground in terms of numbers. Since it is connected to Europe. Meanwhile the US needs to ship in all the armored vehicles and its logistics which I'm not sure how long would take, but would offer Russia advantages until the Abrams hordes arrive. If we're speaking of a Russian invasion of Baltics or Ukraine of course.
I agree with most of your points. Just I think you're belittling the T-14 program more than it should be. It's definitely not only going to be used as a propaganda tool. They're very serious about implementing the tanks into service in large scale. Sanctions took their toll of course.