This might be true but Turkish alphabet was designed in late 1920s when computers barely existed. Maybe they could update it now? I find it hard to believe they would do it though.

EDIT: I guess you could make a case about Kazakh alphabet not inheriting this feature. But having written systems for both Turkish and English I don't find this a huge deal. I guess this alphabet reform has mostly nationalistic motivation and Kazakhs might have wanted to fit their alphabet to similar languages like Turkish or Azeri for which the alphabet is tested and we know it works.