Vivacious Gnome Alternate Racial Trait and Hero's Defiance

[Cao Phen]

Vivacious wrote:

Some gnomes retain a trace of the vitality of the First World. These gnomes recover 50% more hit points (minimum 1) whenever they recover hit points from rest. Whenever they are healed of hit point damage by a spell, they heal an additional amount equal to 1/2 the spell’s caster level (minimum 0). The extra healing does not apply to spells that grant fast healing or similar effects. This racial trait replaces gnome magic and keen senses.

Hero's Defiance wrote:

The instant before you are reduced to 0 or fewer hit points, you can expend a use of your lay on hands ability to heal yourself as if you had used lay on hands, plus an additional 1d6 hit points. If this healing brings your hit point total above 0 hit points, you do not fall, and may continue to act. If you have no more uses of lay on hands this spell has no effect.

Let us say that a creature brings a Gnome Paladin below 0 Hit Points. The Paladin then casts Hero's Defiance as an Immediate Action. Would the Gnome recieve the bonus healing from the racial trait due to the extra 1d6 of healing? Would it still be considered a Lay on Hands, and would not trigger it?

[Cavall]

"To heal yourself as if you had used lay on hands" would have made me think it's lay on hands.

The spell allows the ability to use lay on hands, not to cure in and of itself.

So, to me, no.

The extra d6 is a bit of a wrinkle in that, admittedly. I can see a GM saying sure add in a few extra hp.