no. hes saying, how is there any life on that planet itself, if it eats the star? or is mobile as some of us suggested, meaning long? periods in hyperspace with no sunlight.
Nerd making up shit, thats not in the movie, in order to explain this shit incoming:
Perhaps we can explain the "sun going dark" as simply part of the planets rotation? The siphon, was stationary in the planet right? as the planet rotated, it would lose line of sight. "fully charged, and ready to fire" could simply have been when it spun away, and could no longer pull in any more plasma.
ALSO, we might be able to explain the plasma beam itself, as an orbital platform, unseen. A satellite that captured, and redirected the enegy down to the planet. Logic would say this platform would have been the weak link in defense, IF, the beam had not already begun to charge. But since it did start, destroying this platform would have been too late to stop the weapon, and thus, not the target of the attack.