Am I being silly?

[Fazerider]

The height of the front of the bike isn’t really what matters, though it’s convenient as a measurement (at least, the amount the forks have been raised with respect to the yoke is).
What’s happening is the steering head angle has become steeper. This reduces trail: the distance between point on the road the steering head axis points at and the tyre contact point.
Reduced trail means a reduction in the castor effect so the resistance you feel at the bars when trying to turn is less..
Anything that compresses the front forks has the same effect so yes, braking, hard cornering or hitting a bump reduces trail and quickens the steering. As a result, raising the forks needs to be done with some caution, what feels good for normal riding may be unpleasantly twitchy during emergency braking.