The underlying reason behind UMNO's decision to go alone was lost to the "garang" undertone and overemphasis on politics and 15th General Election by the speakers at the UMNO General Assembly.
UMNO President Datok Dr Ahmad Zahid Hamidi cannot be solely blamed.
Since losing GE14, the General Assembly is no more the platform to set the direction for the Malays and nation. And since Pak Lah's Presidency, the opening address stopped playing the role as agenda setting for the Malays.
More so, the pandemic limit any role the GA could play.