Changes is inevitable.
Airdrops now is mostly be on that Stake-to-earn kind of system on which you would really be needing to stake before you would be finding yourself that eligible and it would be normal that
those projects which does have their main competitors is really that ahead of them then it would be normal that they would really be coming up with some ideas specially on whats
on the current trend on which it would be a normal approach that they would really be doing on the same thing.
Its never been easy because airdrops should really be supposed to be free and instead it is really that more harder into those people who dont have sufficient money
for them to be able to stake and thats why this would really be that advantageous into those people who do have bigger balances.
I understand your points, but you need to know that asking users to hold or stake some tokens to be able to participate in the airdrop events most of the time is good gesture to support a blockchain or a community and also to boost the voice of the tokens to be airdropped, which is helpful, and to earn those tokens doesn't require you to hold a large amount of money. An example can be seen in how users have been earning from BNB and also BGB tokens and they only have little compared to what they got in their wallet, which is why airdop events are popular these days. If it requires the rich only, I believe we might not be having this convo, and BWB has been up with a good airdrop as the OP highlighted. I checked it and found out that it is backed by top-tier powerhouse VC such as Foresight Ventures and Dragonfly Capital, imagine how far the airdrop will go. This is why most people are always after airdrops, because sometimes you can never tell how far the coin could go in future.