Humbled by what?
They do low forecasts, so they can beat them,
and come out and say "we re so surprised" "we re humbled by the support of fans" ect.
I don't think you (and many posters here) understand what this forecast in a fy report means.
This is not a "let's put in a number here and see what happens" thing.
The forecast of 16m units means that the plan is to manufacture 16m units in the current fy. This means time tables, components, plant facilities, distribution channels and whatnot else have been set in stone/paid/allocated/reserved/whatnot for 16m units.
This does not exclude the possibility that Sony might increase production numbers sometimes down the line, but such a change always goes along with much higher production costs per additional unit.
So you are left with three possibilities:
1. Sony produces 16m units as announced
2. Sony produces more than 16m units in the end, but at increased costs
3. Sony planned for more than 16m units at given costs, and simply gives a 16m fy number for "feelgood reasons" when the final tally is in.
Conspiracy theorists will obviously like number 3.