Agreed that not all turboprop time is the same with 'heavy' TPs such as the Dash/ATR seeming more preferable. Yet the industry just can't get away from it's short sightedness of hiring the low hours guy that will take up the SSTR option.
I am sure that having TP time cannot be detrimental but the bods in airline HR departments clearing see things differently. Would I be persimistic to suggest that TP time will only translate well for other TP jobs. Then again it's a sub part of the greater airline industry and we would have our own brotherhood complete with secret handshakes and induction ceremonies