While your point of the problem being the path is logical it is not always a good idea to make the path longer and longer as it results in a bit of lag. The system is forced to search each dir in the path when looking for a program (which is why you have to be smart about what order you put your dirs in and how many paths you add).

One should also note that their solution of adding a symbolic link (which is actually the norm for a situation like this) is a better solution because the solution works for all users where the path solution you are discussing only works for the user that changes the path.