Happy New Year, brother! A few corrections need to be made to your calculations:
First, you are assuming that 100% of the 100M max total supply of Aura will be vote locked. AURA's circulating supply will only be 45M or so after 2 years, therefore halving the diluted vote price per token of value.
Second, only roughly 67% of Aura gets vote locked therefore multiply by 0.67.
Third, you are suggesting that Aura never locks another veBAL in the next two years, which is simply unrealistic. Aura continues to lock more veBAL at the rate of 20k a week and this demand would only strengthen in more favorable market conditions.
Finally, you do not place a premium on the semi-locked nature of vlAURA vs the more permanent nature of veBAL and sdBAL, which is a significant factor to consider for DAOs that may need more flexibility in treasury management.
Json provides a link to a Dune dashboard with more accurate figures, above, if you need assistance w/ your calculations.