You know I made no such claim, and as your link makes clear, the issue is being addressed with considerably more care than your remark about the shape of the earth.
All but the first of these statements are constantly challenged on FR and at hundreds of creationist and ID websites.
There are some interesting fringe theories in science, such as ones concerning the origin of petroleum. One of the things that makes them interesting is that they are subject to experiment. Even ESP is subject to experiment. Oddly enough, people continue to experiment in those fringe areas where it is possible to experiment, even though they are sometimes ridiculed.
What makes ID a non-credible idea is that it is impossible to frame an ID experiment in a way that makes it different from a mainstream experiment. There is simply nothing about ID that makes it different from science except its assertion that traditional science can't explain certain things. This is an assertion which, when made sufficiently specific, is constantly in retreat. What makes it maddening to scientists is that there is an implied moral imperative not to attempt to explain certain things.