I understand the argument to say when you're using a planted substrate to give dosing the water column a while.
However, the planted substrate will release the ferts over a longer period of time, so dosing the water column will aid plant growth.
As chump54 said, excess ferts don't cause algae and limiting plant growth through insufficient nutrients can cause plant decay and then algae.
The ADA range of ferts (Step 1, 2 & 3) provide different ferts at the specific age of a scape and I've been using them for nearly a week after doing dry salt EI for a number of years.