It is not a matter of "appearing" or not deceitful. As project head Sean Murray was fully aware what the game would include or not in the days or weeks prior to release where the content was locked (if not much earlier). He then had a chance to come out and correct himself in public prior to release but he did not. He did not even communicate at all for over a frikking month following release while players were still buying his product only to discover all the missing, but very specifically sold for money, elements of the game. Not sure you can argue in good faith that there was not a hint of deceit there but hey.
On the other hand and as far as I know FDEV has not done that yet with space legs or atmos, they were very specifically stated as to be released in subsequent updates at undefined times, and would only be payable at that time (except minority of LEPers), exactly as Horizons was.
Orders of magnitude difference.
In the case of Sean Murray it was quite straight forward. People paid for those missing elements. In the case of Elite´s space legs and atmos, accountable for what exactly? Other than the minority of LEPers the rest of the player base has not payed a single dollar for atmos or space legs. Those are products that FDEV is funding with his own resources and where all the risk resides on them. I can understand we all would like to have those sooner rather than later, but it is FDEV´s money, their resources, their risk and therefore their decision about how and when to release.
I mean, I am dying to know more about the next Tesla model after Y, but I can hardly make Elon Musk accountable for not releasing that info or car yet. Ditto with getting to Mars. Now if I was a US taxpayer I would probably be a bit more demanding of NASA

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