while it might be nice, i suspect not since they just sent out the surveys for playtest 2 so they'd have to deal with a lot of logistics regarding who filled out the survey already with the initial release vs who filed it out after the later release, etc. not saying it couldn't be done. just saying it seems like extra effort on their part that isn't necessary.
plus, the more classes (or races) offered, the more diluted their survey results are (fewer people trying out any one given race or class, thus less feedback about any individual component)