From
multiple hadiths of bukhari, we came to know that loss of Quran memorizers prompted Abu Bakr and Umar to assign Zaid to collect the Quran in one book which Muhammad didn't do in his lifetime. Now there are some questions related to the Two witnesses criteria:
• Why was this criteria adopted? Why not 3 witnesses or 4? Who came to the conclusion that 2 witnesses are enough?
• What was expected from these witnesses to testify on isn't clear. Muslim apologist like
this argue that, simply to have listened from muhammad wasn't enough. They must had to testify on verses which were written in front of muhammad.
• What about the literary eloquence of Quran? Why eloquence was never a criteria for inclusion or exclusion of a verse for Zaid and his Quran collection team? Somehow it didn't seem a valid criteria to them.