Logically it doesn’t, but in actual good-faith communication people usually follow Grice’s relevance maxim[1]: the points they mention are relevant to the conversation and the point they’re making. Thus, if neither Linux nor Windows support are planned, and the question is about Windows support, saying that Windows will come after Linux would be (vacuously) true, but the mention of Linux would be irrelevant.
(Notably, communication coming out or through legal counsel cannot be assumed to be good-faith, the premise of the court system being that the best we can achieve is two bad-faith adversaries and a neutral arbiter. But that’s not what we are dealing with here.)
Pedantry aside, I think I remember one of the developers saying they do plan on Linux support at some point in one of the previous Zed threads here. There were also some “small team” and “laser-focused” and “best possible experience” in that comment, but they did say outright they were planning on it. Though plans change, I think that’s the best we could hope for at this point, as I doubt even they themselves know more about their future.