well they do tend to credit the detector at lhc for the discovery. why won't people think of the tubes and all the other wires :(

If you watch the announcements you will notice that the individual detector teams do thank them for providing them with an excellent beam to work with, etc..

Also I would like to mention that unlike in the GR wave case the detectors do make the discoveries independently. Having multiple independent detectors on one accelerator is one cheap way to take care of reproducibility of results.