It's very difficult to predict what consequences a change in the rules will have, especially if it's ambiguous. For example, it was hard to predict the removal of the ban on Mullich and magic specialists. Or, for example, it's impossible to immediately analyze what consequences the removal of restrictions on the Conflux might have: will it be overpowered or will it be "okay"? :confused: The same was true with the Grail. No one expected that it would be dug up SO OFTEN in the early stages.
Or was it just random guessing – let's poke around and see – will it work or not? It worked with Mullich, but not with the Grail?
(regarding recent ideas – any vote by any super-duper experts is worse than thinking with your head and weighing the arguments; Wick is an example of a vote by experts that removed the restrictions on the Grail, which I mentioned above).