The issue that TEDx has been having is not that talks have been given that are "maybe pseudoscience-ish". Not stuff in which an unclear demarcation line is an issue. Rather the issue is that talks have been given that are plainly bullshit to anybody with a few braincells still firing. We are talking crystal and pyramid levels of bullshit here. Barely above the level of mad ravings on a street corner.
The issue with botched skepticism among TEDx organizers appears to be so severe that the guidelines to skepticism given, no matter how crude, are entirely justified.