I have no idea. However perhaps we should ask what are the advantages to the horse?
In bf horses some say don't touch frogs at all, others, remove flaps and keep central sulcus clear. Trimming infected frog material is also an individual preference it seems and depends on the severity of the infected/eaten tissue.
I can think of lots of disadvantages to the horse for regular full frog trimming.
If the frog is in good condition, hard and healthy, leave well alone. If it is full of necrotic material it can be advantageous to remove the dead tissue. But not too aggressively.