to the point that I wish a big "GAME OVER" logo appeared the moment I tried a Rogue attempt on the Dragon Isles when CYDSTEPP isn't present.
Try bringing the alchemist's scroll and looking for an altar of Jehora Jeheyu. Rogues don't need
to be fragile
As for glyph lockers... I can see how they might not want people to just start with certain glyphs when certain classes are built around "We start with this one glyph!"
And these classes would have the advantage of being able to start with a two-glyph combo. In any case, both Assassin and Warlord are top-level classes and I sincerely doubt breaking their hegemony on their respective glyphs will change anything, while Paladin and Bloodmage will likely be seeing considerable revision in the future.