Had not even seen that one, no foul in the upgrade, your money, not wasted, Casper makes several nive wiring upgrades for these almost 25 year cars, I have several.
Not to take anything away from Casper but if your not concerned about originality you can make this upgrade yourself much cheaper but no plug and play. I would say based on how bad the factory wiring can get over time it is a worth while upgrade.