I also offer condolences and best wishes under these circumstances. I've always had some issue with hotels that advertise themselves as "pet friendly" mainly because there's no guarantee all of the pets brought in will be "friendly pets." Now, enclose them in unfamiliar hotel rooms and narrow hallways with little room to spare between passing groups of pet owners, and you've got a recipe for an increase in the stress pets may experience.
I must agree with the others. This experience could have occurred anywhere else. Unless the terriers were owned by the hotel, I cannot ascribe the injuries incurred to the hotel.