I bought the 168 2 years ago and it’s impeccable. I bought the GF002 and it too is impeccable.
I abuse my 168 on the indoor trainer and outdoors. I abused the Gf002 on a an bikepacking trip…
I believe that their quality assurance improved over time, sometimes there may be sloppiness and customer service in these cases seems mind boggling from a western perspective, I agree.