I've verified my graph as well as
@RikudouGoku's measurement was as expected from shuoer directly. They said the graphs look correct compared to their internal testing.
Some people prefer different sound signature and there's nothing wrong with that.
For reference, I plotted Shuoer Tape Pro in red. Harman IE 2019 target is gray. My own interpretation of neutral is in blue and my current preference target is in green (based on an average of my IEMs I own plus some tweaks).
As you can see the Tape Pro doesnt really align with what I prefer at all. That said, I still like IEMs that fall outside my preferences as well, but this one doesnt do it for me at the price they offer it at.
In retrospect, I got the review unit from Linsoul at the same time I got the Tripowin TC01 which measures actually very similarly to the TP but with additional treble, and before I even measured it, I was enjoying the TC01 much more and thought it sounded quite nice, not even knowing it was only $50.
edit: fixed some grammar mistakes -- way too early in morning with no coffee yet