Timmy-loves-Rabo said:he was also a pretty valuable domestique for gesink at last years vuelta. i understand his frustration.
He has every right to be frustrated, but venting his feelings in public shows quite a lack of professionalism. I wouldn't want a guy like that on my team.
If he has issues, talk to the team's management. If he just needs to vent, he has friends and family. Don't start slinging mud in public.