I think I heard somewhere that if you have a display wherein there isn't enough leeway in the user controls to reduce blue enough to be in line with red and green while simultaneously controlling gamma that you could potentially consider "calibrating" to a slightly higher white point in order to both balance RGB (from a software perspective) and attain your target gamma. Going into the service menu of such a set to address the excess blue would presumably make such an action unnecessary. However, as a thought experiment, let's pretend you can't get into the service menu. In your opinion is the (hopefully) minor deviation from D65 (or as close as such a set will let you get to D65 in the first place) worth attaining the target gamma?
One obvious drawback is that your primaries and secondaries will be affected by the new inaccurate white point, which I think is the whole reason for caring about D65 at all. But, again, if this is what it takes to achieve your target gamma might it be worth it? Or does it depend on how far away your gamma is from target? If so, then for the sake of this thought experiment let's say you're at gamma 1.6 and are targeting 2.3