Keep in mind all of the below is theoretical and that I have no idea what the facts are...

My opinion and I am not a lawyer:

If the code is Erwin's unique code and IP, using it is comparable to jailbreaking an iPhone or unlocking the bootloader on an Android device. I don't have an issue with it being installed.

If it came from Meridian's IP, like a DSP speakers' firmware then I have a big issue with it, but salute the ingenuity of the accomplishment.

In my posts I think I've indicated that whose IP this is is the fundamental issue for me.

Surround Music Fan/Computer Geek/Curmudgeon in training.
---
861v4, HD621, Panasonic BD-P55K, Toshiba HD-A35, Oppo HD990, Dish Network 622, Pioneer DV-668AV-S w/ DVD Upgrades mod, EW Fontaine II (x5), Velodyne DD-15 (x2), Seymour AV Ice blocks (x7)