Glass cannon applies to like sub level 80-90 where you have mainly focused on main stat ignoring every other stat.
Doesnt take long before you're putting points into stamina/vigor because even spells use stamina so theres no point rocking 10 endurance and wearing full cloth.
Its a rather moot point however because unless you're level 16 vigor and wondering why fire giant is one shotting you eventually you're gonna be in new game plus where you can have max vigor and hefty poise with dragonshield talisman and the mountaintop of the giants death birth is still gonna wreck your shit because of the way scaling works.