Timeless Isle was a test run/experiment/preview call it what you will of how dailies might be changing. Obviously it needs some tweaking, but many people in this game only seem to see in black and white. It's either awesome or it fails.
We all got sick of dailies in MOP, and Blizzard finally listened with Timeless Isle, where most objectives are weekly, but can keep the daily grinders occupied.
I'm sure we can all agree on a few things:
1.) It needs to be dynamic
2.) The zone could be bigger
3.) As a "catch up" mechanic, it probably needs to drop weapons so people jumping into LFR can pull their own weight.
4.) It could probably be "slower" so people don't burn through it in a day then come to MMO champ and winge about it.
But instead of writing off the Isle, give it a chance, give Blizzard some feedback, and we might avoid the horror that was 5.1 dailies... (unless you liked them).