Yes, the man is serious.
If one is speaking of T-shirts worn as out garments and not just under shirts or blouses, then yes a good "no iron" wash cycle can make a huge difference.
Today most T-shirts are either of knits and or contain small amounts of Lycra (elastic). Either way a proper washing and drying can make the difference between a nice smooth result that looks as if it has been pressed, or a crumpled creased mess.
If one is speaking of T-shirts worn as out garments and not just under shirts or blouses, then yes a good "no iron" wash cycle can make a huge difference.
Today most T-shirts are either of knits and or contain small amounts of Lycra (elastic). Either way a proper washing and drying can make the difference between a nice smooth result that looks as if it has been pressed, or a crumpled creased mess.