Not sure. The big ticket info was made available in September 2020, when Hyundai released the info in Europe.Do you think this is a strategy car manufacturers use so their competitors don't get the jump on them. If Hyundai releases the specification to early then VW comes along and realeses a new golf with say 220kw for a similar price that could impact their sales.
I would like to think that Hyundai have a strong reason for doing what they do, but the consequence is they piss off a portion of their customer base.
I also think it is fair to say that we (N buyers) are not overly representative of the average Hyundai customer.