As far as I can see, The multiplication of entities beyond necessity in Occam's razor has mutated into merely the multiplication of entities where the aim is now to have as few entities as possible and that is now what constitutes a "win" in an argument, necessity being dispensed with.
I think you might be using 'necessity' in that statement with 2 different meanings.
1. Necessity to an explanation
And
2. Necessity in itself, applying to the entity, even withoit explanatory purpose.