Well i've been leaning on these charts getting on for three years now, and they've never misled me yet, and i think if it'd happened to others then we'd have all heard about it and VERY LOUDLY, especially as there are a few snipers out there who'd just love to disprove them.
So i'd say that any claim that they are meaningless is … meaningless.
Also, the reason that i'm extremely content that it's Wendi and Charles taking over isn't just that they're really cool, low profile (… ahem …) guys but i know a bit about their RL credentials and capacities as i did for Liri and this gives me total confidence in their capabilities.
I also doubt Saga chose them only because she likes them either, i mean she likes me too but no tap at my door (sniffs)
This kind of work is child's play for them, not to mention that as a binôme they can check out each others work in the event of any passing duh moment.
