Yeah for 2 positions it doesn't make too much difference.
But for 1 position I think it does, your reasoning is that there is always a risk of failure with 1 position training, but even with that risk of failure the player will still generally get more than 43 minutes. Most risks I have with 1 position training is winning by too much and so the player gets subbed out, but that is generally around 47 minutes onwards.