As far as I know, many new cryptos are created simply to follow trends. As you mentioned, without a competent development team and a real product, these projects inevitably won't survive long in the market.
If you see the numbers of coins entering the market right now, then you will see that most of those projects cant survive in the market because they have nothing to offer.
Most of the coins entering the market right now are being pumped base on hype, they don’t have any use to the crypto space, and any coin that’s pumped base on hype won’t stay long in the market because hype won’t continue like that, time will come when the hype is going to die down, and if it can die down, then after few weeks or months you not going to hear about the coin again.
It’s just so difficult to identify a real project right now, most of them don’t end well after investing, that’s why it’s just so risky to invest in all the memecoins entering the market now, because you are likely going to lose your money.