I know, but you're both talking about different things.
It may be 20% for the next few years, but it's also 10% overall. You're both right, why even try to nitpick over these details or correct anyone?
Since this is an investment we're talking about, I think we should strongly lean towards the interpretation of the facts that more conservative rather than less; 20% vs. 10% is a big difference to Zcash as an investment for the first few years, which could easily be longer than the lifespan of the currency.
That's a fair point, and I don't really disagree with your priority here now that it's spelled out. I just think that people would be better served with both facts simultaneously rather than demanding one at a time.