Well, NEEDED no...but the debate over commercial Nutes will forever rage on. You'll be able to get good results with that collection.
IF you have the patience to allow the plants to grow, instead of dumping water, and or nute mixes on them far too frequently....
That FFOF soil will carry vegging plants A LONG time, way LONGER than most people are capable of waiting. That feeding schedule they provide will most likely lead to overfeeding....
You start feeding them too soon, or too much, they will suffer.
Go into the Marijuana Plant Problems section, and see how many sick plants are around, in FFOF soil, being fed nutrients too early, and/or being overwatered...
Its not the soil causing the issues, its the incorrect usage of the products, IMO....
I use lots of FF soils, with satisfactory results. I mix 40% or more extra perlite into all of them...
You did good with the Bluelab gear that's a certainty. I have a few Bluelab tools.
The Truncheon is a must have IMO.