out of context = you provided the severe off-axis graph WITHOUT PROVIDING THE CONTEXT that the graph represents the extreme off-axis measurements.
without this context, it is misleading because it appears you are representing the speaker as having a severe treble roll-off, which is false OUTSIDE OF THE CONTEXT of an extreme off-axis measurement.
the treble rolls off pretty fast.
am I delusional, or is that an actual point of view you expressed as opposed to "an imaginary point of view you think I made"?
you made a claim, and backed it up with a graph that was provided WITH NO CONTEXT for what it was measuring. that is highly misleading.
the 45 degree assertion is highly dubious, not sure if you failed geometry but even with no toe-in most people are going to be approximately at the point of an equilateral triangle, which would mean they were 30-degrees off axis. and, this is worst case, since many people space their fronts much more narrowly than that and thus would be even less than 30-degrees off axis.
a 45-degree spread would indicate the speakers are approximately 1.4 times further apart than the listener is from the speakers, e.g. you are 10' away but the speakers are 14' apart. Not likely.