This conundrum bothers me far more with the purple Classic Space helmet and airtank. The parts are only available for what? 2 or 3 months with weeks of unavailability during as well? When they announced the wait period on new parts to be about 6 months any part that is made available should also be available for about 6 months. It's already hectic enough with pieces going in and out of production within 12 months and a PAB availability of less than that. I welcome the announcement of pieces going out of production but if it's being treated with the same care as the build a minifig section of Legos website I don't expect it to be reliable for long.
I got my two of each but only thanks to the parts bag GWP.
I already imagined they wouldn't put the Spacemen torsos up because they fall under another fake license claim like most Ninjago pieces did for years, and don't do right now apparently. The space torsos should have been made available in February or March according to their original statement.
You know how they have said that some parts, while identical in mold in color, have different internal IDs because they come from different production runs? I assume it's something like that, where they expected a shorter production run to suffice, then decided to produce some other set in between and so the new, larger run is effectively a new piece in the PAB inventory whilst physically identical.