The interior of our sun is calculated to be around 15 million Kelvins.
But, if they end up stopping too soon, the reaction is net negative in energy terms.
Therefore, it is a positive step indeed for running an experiment at such temperatures for 102 seconds.
Its not the hottest temperature ever created on Earth.
However, those conditions last for the sheer flicker of time, which is inadequate for creating energy.
source: www.techworm.net