Take this with a grain of salt, as I am not a golfer nor am I really a golf watcher.
But, I generally dislike "nostalgic" rules, and the whole "signing your own score card" thing seems to be completely irrelevant for this level of tournament in this day and age. As someone else pointed out, it would be like in the NBA having to keep track of your own fouls, and getting suspended from a playoff series for submitting 4 instead of 5 on your "foul card," but if that 5th foul was assessed after a complicated instant replay review.
There are so many cameras, and plenty of funding to have an official for each hole. Just seems irrelevant, nostalgic, and a way to interfere with determining who the best golfers are.