That is correct! This airdrop rewards Byteball holders much more than Bitcoin holders unlike previous airdrops.

Also, don't forget, for every 1GB you get 0.21111GBB, and each GBB is ~0.08-0.1 GB. So 168 GB will get you 35.4 GBB (or ~3.54 GB if you sell them), which is an additional ~$1200-$1500.