Well, while it would be interesting to see Haas and Federer go at it in the first round, where would that leave the rest of the draw? There would be so many more possibilities for a Dodig-De Bakker or Starace-Serra first round. This would lead to fluke runs due to lucky draws. The more seeds there are, the more stability there is at the top. While total deadlock would be uninteresting, a free for all would be too dependent on luck. Plus, think of all the complaining that would go on if Murray faced Berdych in the first round, while Nadal faced Zverev. Cake draws are better than fluke runs.
Well said. A greater number of seeds also gives players ranked 17-32 more recognition for the efforts in getting up in the rankings. With so much ranking points and prize money avaiable at Grand Slams, I think it is good having lots of seeds and therefore a fairer draw.