To understand how high will be liquidity of the coin it is necessary to check how many users have the ecosystem of the project. One of the best way to icrease the ecosystem and attract new users is airdrops.
Airdrop now is not a surefire way to attract new enthusiasts to a coin, because every coin that has been proven to be good will always be sought and targeted by anyone without having to create a program like Airdrop.
I think they made an airdrop just to find participants to join their telegram and Twitter. Not the main destination for investment. So when they launch a project, they already have enough participants to convince others to join them and invest in the project.