So for anyone wondering, I said "f**k it" and went ahead with it.
Follow Kraken's tutorial. The latest update from GM for the radio (the recall update) is 24.1, Krakens is 24.5. I installed the update Kraken provided and then did the MirrorLink and Video In Motion install. Everything went according to plan, steering wheel works, mirrorlink shows up, etc.
Here's what I found though:
1 - Video in motion works well, steering wheel controls work as expected.
2 - The video in motion fix DOES NOT bypass data entry in motion. Driving while using BringGo, it still tells me the car is in motion, and that I can't type in an address while I'm moving. I DID NOT however test the ability to add a phone via bluetooth in the system menu though, that may be working.
3 - Mirrorlink is extremely touchy. I've got a Galaxy S5 which is a compatible phone so no problems there. First, your phone has to be wired to the USB port, and MirrorLink needs to be activated in Settings or Settings/Other Networks. Second, you need compatible MirrorLink apps. My test was with RockScout. After much fiddling and trying, my phone finally connected, but since I didn't have any RockScout compatible apps installed, I couldn't do much more. I then downloaded and installed Sygic (which my phone didn't recognize as a MirrorLink compatible app until I installed Sygic Car Navigation) but was unable to get my phone to connect to MirrorLink again. I have seen a possible trick (via the Button Savior app) that may allow you to home out of a MirrorLink app and just browse your phone, but I haven't been able to test it yet. There's some weird sequence of events that I don't know to get your phone to connect.
All-in-all, it's meh. It was fun doing the process, but so far there's no major gain (apart from watching videos) to doing it. The best gain was using explorer mode to change the radios loading screen to the original Sonic The Hedgehog loading screen.
I'd love to see someone fiddle with this more, but as of right now, I'd just hold off till someone finds the golden ticket to modding these things.