There is also the fact that M+ is a group activity. You dont do an M+ dungeon alone. The MT is a single player challenge that is almost entirely based around the core principle of player skill.
This figure is unproveable. The only people who know the true statistics are Blizzard and they have not yet released that figure and wouldn’t until it was closed.
A quick search indicated one or more sets of tuning done to the MT fights since that post.