You are believing what you want to believe. They are not excellent points. Excellent points are based on data, and the data you have is that this drug will never be approved because it is carcinogenic.
I'm not trying to be a fear monger, but on the other hand it is irresponsible for non-experts to post that the data is nothing to worry about.
The methods used to determine the carcinogenicity of this compound are the same methods used to determine it for many other chemicals.
With that said, I know a guys who's been smoking for 55 years and has no cancer, but that doesn't mean I'm going to tell people there is no risk with smoking.