What I think is one of the problems here is that there is a big gap between the general public and science. The public does (mostly) not understand how science works, and have a wrong image of scientists.
Maybe thanks to the media or whatever who depicts scientists as some strange wierdo doing all wrong kinds of experiments in his basement.
In many fields it is all group works, the individual is becomming less and less important. There are also so may controls.
Anyway, I think it is true that a scientist is under a lot of pressure to get something to be published. This can cause some scientists to fake (or adjust) some data or whatever. However a scientist has to describe the way he conducts his experiments and soon other will try the same. If the experimental data of the other researchers are constantly very different, it is easy for the scientist to get a blame as fraud.
About the big bang therory, it is very interesting information. It is true there are many holes in the theories, or better to say things that we do not understand. This does not have to indicate however that everything is wrong. But in the article I think there is not given a better theory or suggestion. So as long as there is no better theory that can be verified, it is best to hold on to the existing theory and try to prove or disprove it, and continue to calculate its concequences.
Anyway it is good for scientists to have an open mind on theories that they use. I know most of them are, as there are as view things as exiting as proving a accepted theory wrong.
On the other hand, scientist need to use older theories to build something new.
Danny