A good experienced raiding crew knows to be carefull on clicking into zones and picking revive points....however people who are still learning do make errors. Especially when excited or stressed, it is fairly easy to click the wrong button. I remember several times guildmates accidentally clicked into Spirits of the Lost while trying to not die to agro.
One thing that I think would be very good for raiding zones is a simple change in the order of zones. I have always wished that the normal zone be top on the list (default) when you have options to zone in. This would cause the least amount of misclicks as you would have to physically pick the raid zone to accidentally click in. This is especially pertinant on those zones where the zone list order changes (there have been quite a few times where while picking the zone choice or revive choice for a zone we were raiding every week I noticed that they switched the order of the choices).
As far as revive choices, without spirit shards I think that having only in zone revive choices wouldnt harm people too much (of course excepting those raid zones that are intended to have no in zone revive options). You can always revive in zone and click/gate out if you are through for the night. I have seen times where due to lag or even just game bug, someone tried to click a rez box, or revive in zone and it never registered their changing the revive point and instead revived them outside of zone.
As far as accidentally zoning into zones, there are two guildmates of mine who I trust to own up to their own errors who have clicked into citadel but got zoned into court by mistake. These are people who would admit if they had messed up either due to being tired, being lazy or just honest mistake. CS informed them there was nothing they could do to reset their lockout timer, so they had to sit out of a raid, which was very frustrating for them. I dont think that having a confirmation box to enter a raid/lockout type zone would be dumbing down the game too much, and it would help keep errors like this from happening.
I am all for encouraging people to stay sharp and focus on what they are doing to play the game. I dont believe it should be something that can be breezed through without effort or while not devoting your entire attention to the game. I think that raiding takes both time and effort to become good at and the more you work on it the better your crew will get. But when glitches are affecting raiding and there is a way to help keep them from doing so I think it is worth exploring.
On a related note, please consider adding a way for people to check their lockout timers. There is nothing as frustrating as showing up for a raid and having one hour still left on your entire raid lockout timer. Even tracking these things, stuff like server downtimes affect timers and it is hard to keep track of all of your lockouts with enough accuracy to maintain a regular scedule. Having a way to check lockouts, even if it is a central location (like an inn room item, or a clock in freeport and qeynos) would help facilitate planing raids without running an entire raid to a zone in only to find out you have to wait 30 minutes to go in.