The original intention to…

The original intention to phase out all train and trial licenses was intended to eventually eliminate this activity. That was in 1997 by the standards of the day, which seem rather doubtful by 2023 standards.
Trapping and retaining wildlife for the purpose of training dogs is now an activity that is very much contrary to the current standards of having respect for wildlife and accommodating wildlife.

Retaining wildlife is very stressful on the animals under any circumstance. Retaining wildlife so they can be used in mock hunting exercises is doubly so.

The province of Ontario should continue to phase out all train and trial licenses and definitely not permit the transfer of existing licenses.