Indeed, following the Sunnah is better than innovating according to what the storytellers command of lengthening the two rak‘ahs before Fajr.

Anas bin Sirin narrates that I asked Sayyiduna Ibn Umar (may Allah be pleased with them), "Tell me, should I recite long (Qira'at) in the two rak'ahs before the Fajr prayer?" He replied, "The Messenger of Allah (peace and blessings be upon him) used to perform the two rak'ahs before the Fajr prayer (so lightly) as if the call to prayer was being recited in his ears."