Fair enough.
But constants in differentials are dependent on boundry conditions if I remember correctly.
And whether or not a constant is requisite in todays cosmology says nothing about AE's state of mind does it?
The constant is always there and must be assigned a value to get an answer. DeSitter's is an initial value problem, not a boundary value problem. Einstein was an honest scientist, he doesn't stick philosophical value in his eqs. Not even his QM calcs and models.