I like Shawn, he's a nice person and is good at what he does. I don't care at all for vlogs but I have been dipping in and out of some of his USA vlogs, mainly because I visited many of the same parks last year and am interested to see how his thoughts on various rides compare to mine.
It always looked like a rather ambitious schedule and it is proving to be that way. I had no idea for example that they were planning on driving overnight from Cedar Point to Dollywood, taking it in turns to sleep in the car. That is no way to go about a trip like this! Last year we travelled from Kings Island to Dollywood, so not as far as they had to travel, yet we had that as a travel day which meant we could take it easy and have a nice relaxing late afternoon/evening upon arrival.
The recommendation not to visit Kings Island because they closed an hour early was a complete overreaction. Yes it was disappointing but I feel tiredness really got the better of them there. Same goes for Shawn not being able to shake off his illness, with a lack of quality rest/sleep you aren't going to get better.
Ultimately though this trip is business for Shawn. I'd imagine a lot of time has to go in to filming content and putting it all together. I can only assume that this makes it harder to fully enjoy/appreciate the parks, but we are all different and what I enjoy is different to what others enjoy.