That the future mods were going to make this game truly epic. Mod this, mod that. So the understanding from a lot of people was that it would be made more easier and more accessible than other games. There are plenty of games with modding editors distributed with their games.
If a game studio is going to brag about how easily it is to mod their game, how easily it is to add new items, encourage the players to create new items, then they should also provide a bit more information. I applaud the fact that some people have been able to create some truly great mods, but there are so many ideas out there from people like me who do not have the time nor inclination, nor the history of being a modder that it isn't productive for them.
The fact that it can be modded without third party tools says they delivered on that promise.
But speaking as a modder I know we always ask for more than devs give us. Modders are like bucket full of wild ideas, we all read what the devs say, think wow my idea is possible and then the game appears and the idea does not work, we assume the devs broke their promise but the reality usually is that they did not even consider that idea or had something else in mind.
For example Frogboy says you could make a Baldurs gate style game out of it, first thought I had was of a real Baldurs gate style game. Then I sat back and remembered the FE campaign and worked out what he meant by that. Yes we could make a Baldurs game STYLE game out of it, but it would be EXACTLY what you might consider to be Balduers gate style. If I made plans based on it being exactly like Baldurs gate, I may be very disappointed. But if I adapt the idea to FE, I think Frogboy would be right and the idea would be possible.
When Frogboy said he fears what modders will do with the system, I laughed my head off because I know exactly what he means.
It is a question of expectations and interpretation
Anyway, these things just take time to get going and it will be down to us modders to do it.
Modding attracts a lot of wanna bees, people who need their hands holding, I like to promote modding as a fun creative hobby but 30 years modding stuff has taught me the hand holders will never make anything. Only those that dive right in ever produce anything worth while.
Mark my words, the doers are the people you should be watching.
Speaking for my self, all I ask is that the devs answer the odd techy question from time to time but I do not expect it, I just hope they will.