It's five years away from being five years away.
Seriously though, when someone says '5' for anything, it's a general statement. When someone says "I'll be there in 5 minutes." Maybe one in 1000 people actually come within 5 minutes. All it means is we don't have an actual time frame.
I'd be way more excited if an article said baldness to be cured in 6 years. At least then it would seem like wow, these guys actually are on the lookout for something... why 6 years, is something set for release?
If you hear 5 years, it basically means they have no idea when it will come so let's give them a reasonable time to get them off my back. AKA, "The game's over in 5 minutes!" "5 more minutes until I'll be ready!"
If someone said 4 or 6, it means they probably have a plan. 5 means... we have no idea when it will happen, but get off our back.