Here I have used my side cutters to nip away at the crimped then soldered AMP PIDG insulated terminal. As can be seen the solder did NOT wick past the crimp-band area and create a hard spot. This is because I made the crimp with proper tooling to begin with thus making soldering unnecessary. If you used a crappy tool, yes you would create a hard spot and yes the solder can wick beyond the crimp-band area.
IMPORTANT: These images are for illustrative purposes only and are not a suggestion nor recommendation to crimp and use solder. As they say; your boat, your choice.