I think it would be nice to see them become relevant again. It's one I would buy if they did. (Speaking as a collector.)I highly doubt the ez5i is permanently blocked. The FPGA code of this flashcart is updatable by the user with a firmware update.
But the team has not kept it up to date for the 3DS since april/may.. so "permanently blocked" is a matter of whether or not the team is going to take the opportunity to re-launch their presence and release an update.