It could be they have a prototype light bar as of September because:
1) That's specifically what we were asked to bid on (we've been working with a tier one for over 2 years now, which lead to this
2) The question Mika responded to was in a May 2020 q&a, therefore they could have handed them a prototype by September
3) The 2019 Agm ITTR referenced Lazovskys comments also should note how they specifically guided us in this direction for a 400g solution (which is also optimal for 800g co packaged optics, remember Suresh said the Interposer is Speed Agnostic!)
great work ITTR
thank you
SP