Yes this apostate thing is convoluted. My two baptized uncles (now in their 60's and 70's) both left the JW's about 50 years ago. However, they faded and disappeared from a small-town congregation. So since they were never announced from the platform as "Disfellowshipped / disassociated" (or "no longer a JW" as they announce these days), they can freely associate with my JW relatives. However my sister and I were announced, so we're viewed as dangerous / poisonous and possibly apostate. BTW - My two uncles feel exactly the same way about JW's as my sister and I do.
So the rule is: IF you were baptized and subsequently announced from the platform, then you could be apostate. If you were only baptized but got away, you're merely a "lost sheep".
And of course, ALL this is Bible-based (tm).