In the 12 years I have held a PPL, I have used the training fix facility once.
At the time, I was very low houred and couldn't establish a precise visual fix in haze over featureless terrain near controlled airspace near Stansted.
3 Greens, surley that is not a traiing fix but a "real" fix.
I think that everybody is overreacting to this, sometimes it is neccessary to turn 121.5 down for a few moments, then you turn it up again.
It's not rocket science.