Yes, in current airdrops, the only one who has more referrals earns, others waste their time. Have you noticed, that current airdrops have turned into a competition with weekly tasks? Previously, all that users have to do, was to fill their address in airdrop bar and wait for tokens. Previously airdrops were free tokens or coins to test project. Now it a competition, who spends more (on promoting their referral link), to get an altcoin that isnt trading.