What worries me is that you "got rid of" another player - if anything you should have just benched him for awhile and then done some healing comparisons yourselves.
The debate between LoD EF and how effective they are also depends upon what the fights are like and what the rest of the raid is doing. To remove a Holy Paladin in this situation was kinda unnecessary and just shows that your other guild members may be in the same situation - dont like his play style no worries we will get rid of him - instead of actually trying to figure out if his play style was actually better.
Anyway
you should be showing us your WoL reports and then we can tell who was doing the correct thing.
Sound like you were wathcing the healing/dps meters (skada/recount) too much rather than watching who was being kept alive. Making a post without giving evidence of play style makes it just into a discussion about the pro's and con's of EF/LoD.
Personally I use EF + LoD and anything i feel is worthy of using - even Flash of Light if i have to in order to keep a player alive as dead players dont contribute
Oh and the reason your numbers went up is because of the increased damage being taken by the raiders, the EF blanket your other pally was doing was adding Illuminated Healing bubbles on a lot of people and the preventative nature of his method was reducing the healing needed. A pally doing EF blanket allows the other healers to concentrate on healing those that really needed it, the Illuminated Healing and EF kinda pumps up the meters but at the same time it allows a very large margin of error for other healers to work within.
At the end of the day the other pally surely told you his reasons and tactics and you should have tried his method as well to see if it was an efficient use of mana and if that method also was good at keeping people alive.
I want to add more but I am sure eventually you will copy your other pallies tactics and test it for yourself ?