It is possible for the scars to look slightly wider after aggressive spot treatments like the TCA cross or full beam ablation of deep scars. There could have been some damage to surrounding skin in the process of aggressively treating the deeper ice pick scars. This is usually not seen in the treatment of rolling or box scar types.
Collagen remodeling is a lengthy process and there may still be positive changes in time to come even without further procedures. I would advise you to discuss your concerns with your doctor first, before seeking a second opinion, as he may know your condition the best.
All the best!