I for one would not pay 50 cents to hear Hellery speak, however the list of demands, which is a standard in contracts for performers and speakers, is not excessive.

I took production management in college, and we had to deal with contracts like this with musician and actor groups who came to perform.

What she's asking for, outside of the 300K, is nothing special.

The really weird stuff that you hear about, like JLo demanding 600 count Egyptian cotton bed sheets or another group demanding a bowl of M and M's with all the brown ones taken out are either designed for "buzz" (aka a publicity stunt) or in the case of the M and M's, sound like a mind control tool. Just sayin'.