Why is that a problem?
This seems to be the way most miners choose a pool - they go with the biggest one. This is the reason Deepbit became too large, then BTC Guild, and later GHash.
Right now Chinese pools have over 50% of the hashpower. This means that just like the US government controls Visa and Mastercard, the Chinese government now controls bitcoin. This is a very bad thing for bitcoin.
You may also want to consider that there is a warning at bitcoin.org to not use the pool you suggested because they are mining blindly:
https://bitcoin.org/en/alert/2015-07-04-spv-miningIf you care about what happens to bitcoin, then think about how you use your hashpower and how it affects bitcoin. The future of bitcoin is probably more important to you than it is important to be doing the same thing as everyone else (why is that even important).
Also it is PPLNS at 1 percent. You can find a good amount of PPLNS that are no fee.
Do you care about the fee or the final payouts? 1% is not much and there are many other factors involved. Some pools don't pay out income from transaction fees, have a high orphan rate, pay for stale work (using your mining income to subsidize miners with bad internet connection), or don't have merged mining.
I had a large miner (at the time) who was very happy with the customer service and other things at my pool but he felt it was unfair that my pool had profits, so he left for Ghash. Then Ghash scammed a casino (they say the employee who did it no longer works there). And their payouts were about 10% below average, probably because they had a vulnerability that some miners used to get their work counted multiple times. 10% is a lot more than 1%.
I understand that miners will not take all these complicated factors into account though. I guess the fee has become like the pixel count of cameras, it's a product reduced to a single number to make it easier for you to choose. Maybe it would look better if transaction fee income and namecoins were kept by the pool, but the fee was reduced to 0% ?