I think this actually did fix something. I used to not be able to go from 3G->LTE without toggling Airplane mode. Now it'll automatically reconnect to LTE without me having to do that.
I'll be interested to see if I see the same results. I have a Verizon (Samsung branded) 3G network extender in my house and I toggle LTE off at home so the phone isn't unnecessarily straining to get an LTE signal and draining the battery more quickly.
When I leave my house, I turn LTE back on. However, the phone stays on Verizon's 3G network until I toggle Airplane Mode on and off.