Thanks for the clarification. I'd been using this game to compare 5e to 13th Age, which assumes up to 4 encounters a day, and roughly 3 short rests (less if double strength encounters), and also recharge rolls for certain powers and items on a short rest. If you'd not said, I'd have not known!
Maybe the game has more harder encounters compared to pnp? But 1 certainly seemed way too few to me