There is no way step 7/8/9 clubs could accommodate a phoenix SWFC, they are run by 3/4 volunteers and have little to no infrastructure. Wakefield FC started at step 7 and Bury Step 6, so the FA does have digression to place clubs where they see fit & the pyramid could accommodate. Also, Marine are Step 3, and have decent facilities so your example a very different world to Step 7 & below.