Sorry to hear you feel that way, steppedonad4. In our discussions so far (this concept has actually been forming for the better part of a year now) it's been really well received, both by local game stores as well as convention organizers. In fact, my local shops and DMs that raised similar views about perceived exclusivity were pretty keen on hearing about the potential for more public roll outs of these adventures as time elapsed.
The item rewards aren't any more powerful than what is available in a traditional Expedition. They may be a bit more specific in flavor but no mechanical advantage would be granted - this isn't an opportunity for players to "get stronger", but rather for players to explore some more niche topics and events in and around the Moonsea that may not otherwise fit into the scope of a normal season of Expeditions.
Final details aren't set, but would this help?
*) Admin creates and deploys adventure for whatever format is available -- convention, LGS, or other public play
*) 12 months after creation, RCs & LCs get access to run it at their events (as above)
*) 24 months after creation, becomes available for public consumption (any DM globally)