Tyler had some epic rides. As for Frank, only Frank knows his own body.
Comparing Frank to Floyd,( who must have ridden through incredible pain, but in my opinion, had knowledge that he might not be the same rider after his hip replacement, so therefore carried on his season, leading into, and riding the Tour,) and Tyler,(who knew he had incredible form, and has an incredible pain threshold, collarbone breaks are extremely painful,) is not relly a valid comparison.
Who knows, Frank knew he wasn't going to podium in the GIRO and therefore thought completing the race, and damaging his future, smart move by Frank in my opinion, even if the manager does not approve.
As for Bruyneel firing Frank of Andy, forget it, they are top drawer riders, and have a big following. Frank and Andy can ride for a lot of teams if they want. Blackballing for dropping out of a GT, or asked not to participate,Riis, not smart. The Schlecks are top GT riders, a rare breed.