my shell is also rather largem, we are not hardcore nor a true endgame shell(we do alot of it though)
no one is forced to do anything they dont want, its not a requirement that we share drops to get top 3/20 every time, but they all realize if they want the relic, itl really help in order to get us past this first step, so they are doing it to make sure we can get it done without it taking forever to do.
Add in the fact alot of us gather anyway in our off time....it works out quite well in that manner.
However, what you are basicaly saying at this point is that since other groups do things differently then you, they shouldnt be allowed to benefit from it and therefore should be restricted so that you are on a level playing field as them due to the fact that your group is not willing to put in as much time, or is unable to put in as much time, or is just plain unwilling to help each other out to make sure it happens as such
that unfrotunately is NOT a problem with game design, and is a problem with your inner workings as a shell and how your people want to do things, and it is unfortunate.
And as i point out quite often over and over, this is still new, people are now in a rush to be the first to get their seals, they are going out of their way to make sure they can get them fas, give it a bit of time, and the hardcores will settle down, and you will get your turn to do this without needing millions in drops to do it.
do it only on the weekdays(like i do) and perhaps even try to coordinate with other shells to see whos donating what ahead of time so perhaps you dont waste your drops in a day when you may not make top 3 due to it.
there are a ton of ways to go about this, the system is rather fair as is, time and effort=reward and unfortunately, more people = more time available to get such a reward