This is a research blog post, similar to a published academic paper. Not everything is a product, that's how research works.
If something is not reproducible nor public, the researchers could claim anything they want, as long as it somehow sounds plausible.
A researcher working in a corporation may have good reasons to exaggerate results or cover the defects:
- individual prestige (higher salary / better job)
- impact on company valuation
- potentially being able to claim a patent if someone else actually manage to implement the real deal
- etc
Academics on the other hand need to maintain strong relationships with industry to be in a position other than just chasing grant money (via publications). They need their paper to be accepted, or they’re in trouble. They certainly care about prestige and patents just as much as any corporate researcher.