OK, I am going to play a little devil's advocate here, mainly for fun, 'cause I dont like lack of sportsmanship, but also because I dont think we can judge Lesnar's attitude on this one fight alone.
The defence for Brock Lesnar.
1. Having failed to get a wrestling scholarship entry to college, Brock enrolled and off his own back, became a 4 time all american champ.
This is the start of an early pattern of being underestimated, or unappreciated for his talent, and having to prove people wrong.
2. He joins WWE, and while much is made of Kurt Angle's 'real' sporting pedigree, Brock is introduced as just another no-neck slab of beef. He proves popular with fans, but is treated poorly by the organisation. Again, its him vs those in control.
3. He leaves WWE, and will forever have the 'wrastlin' ' stigma attached to his credibility as an athlete. He joins the NFL on a trial pre-season try-out. Its a sport he has little experience of, having thrown his passion into his wrestling, and the try-out is unsuccessful, and very highly publicised. Another unfair blow is struck to his athletic reputation.
4. He takes stock, and decides that his experience, attributes, and continuing need to be recognised as a 'real' athlete, are all tailor made for MMA. He doesnt talk about it, he ups and goes for it, and wins his first fight in a smaller promotion. Things have started well.
5. His profile means that the UFC becomes a real option, and he says yes, but only for real
with good fighters, and he starts with Mir, who technicaly won the fight, but did not beat the man. Does he get props for jumping in at the deep end? does he get any credit for nearly KO'ing a world champ? No, on the whole he gets a luke warm reception, and lots of talk about the WW freakin' E, and White telling him that the UFC is not a place to 'learn to fight'.
6. Undeterred, he signs up to fight Coleman, who is replaced with Herring- a young, up and coming legitemate contender with over 40 MMA fights. He takes the replacement, and prior to the fight, is respectful and talks of Herrings 'superior striking' and 'great experience'. How is this reciprocated? Herring laughs about having to fight him, calls him a 'steroided out wrastler', and generaly whines and b1tches that he is too good for a freakshow undercard. This from a guy who comes to the Octagon in a leather Duster and black stetson!?!?
Now think about the above. You are 30 years old, and have trained like a beast all your life. You have proved college coaches wrong, you have been stiffed by management even at times of success, you have worn your heart on your sleeve and had the courage to try, and fail, in public, and have recieved nothing but grief and derision from all quarters no matter how hard you try, and no matter what medals you win.
The win over Herring will have to get him some credibility as a fighter- there is no way it can't. that
is why he was so OTT in the win celebrations, and as people accept him as for real, and as he begins to feel that he only has to fight his oponent, and not his history, so we may see the class you feel is missing.