I have been in the same dilemma and my conclusions are that the Eclipse is far to expensive; a pane replacement will be at significant cost and it cannot be upgraded; another thing to consider is longevity of oled panels, on AV forums there are a significant minority who have had multiple screen replacements due to faults- and LG is sympathetically replacing said screens. I doubt B&O would be so helpful.
If, like me, you have additional B&O speakers ; even if the stage MK2 has Wisa, the quality of sound I would have thought be lacking- its all about the sound processing and having recently moved from a BS3 to a BS4 based system I can vouch for a significant change in audio quality. Surely B&O will not provide such a cheap mechanism to bypass their own TV offerings.