Unless you ride straight into an immovable object, there are at least two entirely different things cooperating in throwing you over the bars, braking force and body positioning.
You don't need wheel lock to get thrown over the bar if you're poorly positioned and braced.
Many who claim that "the brakes locked up" just weren't doing it right, and folded at the elbows or lost hold of the bar as the bike slowed down and momentum carried them forward. If you fail to brace yourself you will get pitched forward when braking even if the wheels are still turning.
Before trying even "moderate" braking, you need to understand what's going to happen and be ready to counter the forces that will be generated.

You need to have a good grip of the bar, elbows and shoulders braced, and for hard braking, and have your body shifted back-and-low before clamping down on the brakes.
Otherwise you might as well blame the car's brakes for thowing you into the seatbelt/dash.
And I don't hear many people deliberately dulling their car brakes down.