The last of us wasnt an uncharted game it was just a new ip that ended up doing well.
I'm not entirely sure I see your point. TLOU was a new IP and as such isn't something you would expect to outsell established franchises, but it did because of how special it was. Here we have the 4th installment (and the last) of the Uncharted series, made by the same people that made the most accomplished Uncharted game and the most awarded video game in history. Uncharted 4 will sell a HUGE amount of PS4s.
The PS5 Exists.