I don't know that they could use a pick guard similar to the one on DB's HOC 137. It's almost exactly the same a what Gibby is using on the USA model. They don't need another Gibby lawsuit. It might have been better to just leave it off.
I don't know if using a stoptail/bridge vs the wraptail is another way to distinguish itself from Gibby, but I don't remember any issues with the old H137 with the wraptails. It would just mean additional inventory but that shouldn't be a huge deal. Order a dozen, and do a run. They mention enhanced sustain, but I think a good wrap can be solid as well.
The headstock is part of the Custom Core identity. I can understand them using it, but it shouldn't add a lot to the cost structure.
I also think $3300 is a bit pricey. $2750 +/- would be more in line. You don't have the carving to deal with, binding, or any of the niceties of the 150 or 535s.
Its nice that it doesn't have the poker chip. It's a worthless piece of plastic.