All I've presented here is actual data from the manufacturer of these speakers, Celestion, that makes these EVH speakers showing them to be 20 watts.
There really isn't any other verifiable data anyone here including you that show the manufacturer, Celestion, saying in any way these are 25 Watt speakers. All that has been presented to make that argument are specs for the Chinese RI 25 watt Greenbacks and rumors and myths.
The only 25 watt Greenbacks Celestion makes according to their spec sheets are the Chinese RI version in which case you would be right but these aren't those speakers.
You asked earlier regarding the speakers ohms and why it's tagged at 15 ohms.
Maybe the speaker is rated at 15 ohms.... Because jeez it's actually 15 ohms like the manufacturer says on the spec sheet and makes it that way, what a surprise...... Hmmm maybe it's actually 20 watts too no, because thats what the manufacturer says on the spec sheet too.
Its no real big mystery or all that confusing and it's simply stating the obvious and verified data that the spec sheet shows.