We can sit here all day and debate whether or not the modification of fortification as currently implemented in game is a good idea, or not, but lets talk about the facts
1. When has Turbine, EVER been able to make such a huge change to the game without majorly screwing it up?
2. Here is what the D20 SRD Says about Fortification:
http://www.d20srd.org/srd/magicItems...#fortification
3. The rules of this game should stay as close to D&D as possible.
4. As others has said, there would have to be some MAJOR balancing to MANY aspects of the game prior to the change of fortification, and I honestly do not have faith in Turbine to make this happen without causing some serious damage to DDO.
So, my main concern with making a major change to the game, such as how Critical hits, and fortification work, are points #1 and #4.
I could very easily see many many bugs attached, such as something like 'All Players with an AC of 35 or lower are being auto-critt'd on every hit'
Its not that I dont think there have been some good alternatives suggested in this thread, but this is Dungeons and Dragons Online, lets not forget about the D&D part.