The "official" announcement of the card was on The Points Guy.
http://thepointsguy.com/2016/08/chas...-reserve-card/ The verified Chase twitter account retweeted his post about it.
It clearly says Chase confirmed to them that the travel credit would apply to anything in the category. Chase also clarified incorrect information in the post: That the CSR doesn't get the Visa Infinite $100 flight discount. If they went out of their way to clarify that, why wouldn't they correct the other information.
Anything in the travel category. It's pretty clear.