It helps that Bloomberg left an unending string of sexual harassment complaints and cringeworthy public statements in his wake throughout his entire career as a business & political figure.
It's probably oppo research but these kinds of ndas are terrible. If you've ever seen terrible behavior kept hidden by ndas, and I have, you can appreciate how bad they are.
IANAL though the NDA part of Exhibit A pretty much looks like other company NDAs I've seen. Probably some corporate lawyer drew this up. It looks like the "cover my ass"-style NDAs companies write to be very broad yet defensible.