Being "in hot water" is a common idiom that refers to being in trouble or a difficult situation. When applied to online personalities or public figures, it often pertains to controversies, criticisms, or backlashes they face from their audience, the media, or the public at large.
As they made their way back to the surface, the hot water of the ocean enveloped them once more, but this time, it was tinged with a sense of accomplishment and a hint of what lay ahead for this dynamic duo. mylfseeker+andie+anderson+in+hot+water+with+patched