No, the creators of the website did a poor job of trying to confuse people by renaming water with its scientific or chemical name of DHMO. Unfortunately, some have polluted several websites with purposely biased propaganda meant to spread rumour and scare people to believing in it. the following information about Dihydrogen Monoxide Research Division does not endorse the use of scare tactics, particularly when telling people about the invisible killer, DHMO such as exposing humans to the deadly cancer. However, the website does not provide any listings for further reading and or sources for crossing facts. They are set up to promote certain agenda or advance the interest of certain groups. Everything seem to be entirely made up and from their view point. It defies common sense to put out such alarming news without any credible source.
To improve upon their argument i think they must come again with sources or research findings to make their case persuading and rational to the common man, and also avoid being overly sensational as this cast doubt in the minds of critically thinking persons.