First, I said paint select in Maya, not Max. I use both programs of the paint select tools in Max are terriable. Try Maya and you will see it's paint selection tools are superior.
Second, it works in proxy to the center of edge so, it doesn't select edges you just cross over. Again, you've obviously never used Maya's paint select tool and if you did you would know it doesn't select edges you just cross over. You should try it, it's awesome.
Third, why would you have such a strong opinion about something you've never tried or used in Maya? What's the harm in adding another feature anyway especially to a newer program that needs to mature? btw, I watched all the UV tutorials and yes they are great.
Fourth, I am UV'ing low poly triangulated meshes so, there aren't edge loops to select. I agree UV'ing in 3DC is way faster than any other program I've tried but, with other great features it will be even faster and better.
Don't be suprised if someone asks to make something better. Everything and anything can be improved upon.