It seems the trend of the moment, just like Moondrop made with Chu 2... It makes me notice how close these two are, with Chu 2 a tad brighter:Notice how Crinacle's choice of words is very precise: he did not criticize the original tuning, his preference, but rather, he adapted the tuning to what the market wanted.
"Some people felt like it [bass] was all right but many people complained that it was a little bit too little. And yes I've heard your feedback I've taken them into account, after all the kind of people who would buy a $20 IEM are going to be the kind of people who would expect a lot more bass out of their purchase. And so for the Zero 2 I've decided to go for much more mainstream "bassy sound", increasing the bass response by about 3 to 4 dB over the original."
"Overall the Zero 2 compared to the Zero 1 is going to be a slightly down tilted version, more "bassy", less "trebly", but at the same time because of the improvements to the driver it still sounds arguably cleaner. In conclusion the Zero 2 is essentially just incremental upgrades, small little improvements, but yet coming up with a product that is arguably still superior to its predecessor."
...arguably to the majority of the buyers.
This reminds to me when OG Zero came out just few months after OG Chu.
As Crin himself said, for me both lost their "personality", but after all they are in business and they have to sell as much as they can.