OK, I will take a stab at getting more discussion going.
Not to put to fine a point on it but brine is salt suspended in water. Marinade is a flavored liquid, which may or may not contain salt.
Brining makes the meat juicier. Marinade makes the meat more flavorful.
I think what you are describing is marinade.
Jim - Another transplanted Texan
Former KCBS CBJ
Large and Medium Big Green Eggs , Black 18.5" WSM, Blue Weber Performer - Stainless, Green Weber OTG Kettle , Brinkmann SnP Pro, and a Stainless UDS. One retired Portable Kitchen grill.
Red Thermapen, Maverick ET-732, EdgePro Apex Sharpener.
Avatar is the original 1951 Weber Kettle