Reply To: Consulting the Igros

תן לחכם ויחכם עוד Eli Y – Tosfas in Baba Metzia by the תנור של עכנאי explains that we needed the Bas Kol by Beis Hillel even though they were in majority because the Beis Shammai is sharper explains why we don’t understand
currently the Beis Shammai. Also currently we can’t take their stringencies.