Articles for 2013 are still available? It was ~10% for all laptops launched in 2013.
In 2023 The penetration is ~20% so by these metrics they did double the number of touch enabled PCs. It just took a decade too long.
In fact in 2012 - Intel did a study that said 80% of users prefer a touch screen. https://www.neowin.net/news/intel-80-percent-of-pc-users-prefer-touch-screens/