Imam al-Dani in his “Jaami’ al-Bayan fi al-Qira’at as-Saba’”, vol. 2, p. 860, said:

And the Imams of the Qira’at did not choose the Ahruf from the Qur’an on the basis of what is more linguistically prevalent [in usage] and more analogically appropriate in Arabic, but rather on the basis of what is more established in tradition and most authentically transmitted. And if the tradition is established, then it cannot be rejected on the basis of analogical deductions in Arabic or what is deemed more prevalent in the language. This is because the Qira’a is a Sunnah that is meant to be followed and we are obligated to accept it and adhere to it.

الإمام الداني في جامع البيان في
القراءات السبع ٢/ ٨٦٠:

وأئمة القراءة لا تعمل في شيء من حروف القرآن على [الأفشى] في اللغة، والأقيس في العربية، بل على الأثبت في الأثر، والأصحّ في النقل، والرواية إذا ثبتت لا يردّها قياس عربية ولا فشوّ لغة؛ لأن القراءة سنّة متّبعة يلزم قبولها والمصير إليها.