The summit tower is only 5.6 in dry conditions and even when it's all iced up like when we did it it's not too bad.
It's getting to this tower that is the big problem with many objective hazards no matter which route you take. The weather here is very poor for the most part and storms come in regularly and quick. For being ony 180 miles away from Vancouver it's amazing how remote it is even today. Cheers