These are 18-23 year old kids. They will always have something to complain about, it is just that Twitter has now given them a public voice before they use their brains.
I wouldn't be surprised if coaches had a little talk to the players about "think before you tweet".
I saw the Hurd tweet and thought nothing of it. Sometimes, having responsibility means you have to do things you don't necessarily want to do. I am also not surprised that they have the guys travel as team, stay in a hotel as a team, and do events as a team because that is why they are going to Tampa, Florida in a January 1st bowl game, to play football as a team.
I can completely understand the school not wanting to leave arriving on time and at the right location completely up to the player. There is a lot of travel itinerary that has to be organized for that many people. Can you imagine how much more difficult it would be with certain players traveling on their own or deciding at the last minute to change what they want to do.
For example, kid says he's flying with the team. School books tickets, meals, etc. for said player. Player is from Miami, Florida. Decides on Christmas Eve that he just really doesn't want to go all the way back to Tennessee when he can travel a few hours north to Tampa and spend an extra two days with his family and friends. Now the school's out that money and time wasted planning for him. Plus, all the other stuff that could go wrong in-route to the bowl location. Coaches don't need to be wasting time looking for this player or that player.
You want to play in a bowl game for the University of Tennessee, get some cool "bowl swag", enjoy a week of activities and spending time with your teammates, and play on national television on New Year's Day?! Then QYB.
I'd practice every Christmas for the rest of my life, if it meant that I had the ability and opportunity to do what these guys are doing right now.
All that said, I think we adults take twitter WAY more serious than teens these days mean for it to be taken. They see a simple complaint, we see a "public outcry of injustice". They've grown up with it and it's just another way to express their opinions.