No, that's a raised kerb. No painted line could reach 10cm in height (I'm sure there's a Guinness World Record attempt waiting), and no engineer in their right mind would ever design one. It should definitely read '10mm'.
Yes, that's not a 'white line'--it's a light-coloured raised kerbstone (and not what was pictured with the initial article). Rubbish engineering indeed (and poor reporting).
No, that's a raised kerb. No painted line could reach 10cm in height (I'm sure there's a Guinness World Record attempt waiting), and no engineer in their right mind would ever design one. It should definitely read '10mm'.