It maybe me, I tried having others read it and they were as confused as I was. I think you have to rewrite your soil depth settings and what is recommended.
Under the Help me choose you say
For lawn/turf, we suggest using Shallow (1.5 in) for young plants and Deep (3.5) in for mature ones. If seeding, please use Shallow (1.5 in)
This is poorly written and hard to understand. It is talking about lawn/turf but then randomly starts talking about plant depths. As a consumer reading it, you’re mixing both items while not stating you are clearly talking about both lawn and plants. If you are talking about all depths, the lawn/turf needs to be cleaned up and just make clear about depth selecting.
As far as I gather this all items are is using 1.5 in for young and new lawn and plants and 3.5 in for mature lawn and plants is this correct?