So, all those who return after being DF'ed, can now partake?
That has always been the case. If an anointed one is DF'ed and returns and is reinstated he is still of the heavenly calling. Life on earth should not be viewed as a "second prize" if you fail as an anointed.
Latest advice for jw parents: if your kids get disfellowshipped, fight the urge to blame yourself.
The elders will do the blaming for you. Which is why, in more than one case I am familiar with, fathers of DF'ed sons "lost their privileges", they were removed as elders. I am sure many on here will be familiar with similar cases.
George