When Donald speaks lawns, people should listen (LOL, play on old EF Hutton commercial). But, he is right.You should put down the proper amount according to a soil analysis. No more / no less.
I know nothing about Idaho turfgrass, but in Michigan it is generally recommended to NOT fertilize your lawn in very early spring. The lawn has stored up nutrients from last fall that it will use the first 3 - 5 weeks of growth. Adding extra fertilizer early causes the grass to grow extra luxurious and prompts more disease, etc.. The exception would be if you are bringing back a stressed or damaged lawn.
I always recommend consulting your Land Grant University Extension site for local recommendations: https://www.extension.uidaho.edu/re...andscapes&category1=Gardening&category2=Lawns
A quick glance at their fertilizer timing DOES recommend a small application around Easter, so maybe Idaho turfgrass is different than Michigan.