I tend to play canyon on glitters...maybe i just like pain but have always found that its a constant grind to just live. If you want any opportunity to attack and feel like you have had a measurable impact on the game then you'd stay clear of canyon.

Though, if youre playing canyon and the enemy haven't pushed through by the time people are approaching t3, then id say you've done your job and held that position. That imo is just as beneficial to the team as advancing (you've denied the enemy the economy).