The tactics can be amazing, though this year, the freak performance of one rider will raise the issue of chemicals - but this has been already been addressed by several commentators - see Dan Lloyd on gcn racing on YouTube. What is going on behind podacar- multiple, multiple, overlapping stories: still news to me after several years are the tacit deals done between teams.
As for looking sickly: riding 21 days at 5000+ calories intake per day at often over 50kmh doesn't strike me as sickly.
How do you look racing, on a bike? It's tough!!
Sitting at my desk for half my day job seems worse.
And, as for it being 'such an event'....? It took me a while to geddit, but the lantern rouge channel explains many tactics.