I really wouldn't consider it whining to say something like
There are so many low-budget games that support steam workshop. And they do it because the workshop is ultimately about improving the user experience. It's not a toy for modders to play around with, it's a way for you to unlock the modding potential of the game to a much wider audience. That "modding potential" has already been bought and paid for with many, many dev hours. And now it sits mostly unused. I doubt even 1% have tried any mods at all.
or you might say something like
Remember in E:wom how you had an in-game tool for sharing and downloading user-made maps? There were hundreds of maps there. Maybe even thousands. And for FE:LH, the amount of maps shared is precisely zero. The editor is still there - actually, it is better than before. What changed is easy access. This is what an easy-to-use mod interface can do for your game. It's not just about getting the mods out there - it's about enticing others to contribute as well.
or you might say something like
It doesn't even make any sense. In-game you have tools for building maps, making stamps, factions, tile designs, effects. What you don't have is a mod screen. How did that happen? The first thing you are introduced to as a player when you venture into the game's workshop land are fairly unapproachable tools. What you SHOULD be showcasing is what others have done in the past. What you should be saying is "look what can be made given the tools at your disposal". And why? Because a user doesn't care about tools, he cares about results. And a modder wants to know how far he can take his mods, not which shovel he has to begin digging with. There are friggin' individual icons for the pieces that make the tiles in the tile designer. And I don't even want to know how much time you spent on the in-game UI pieces for the game's workshop. But you don't think it's worth the time to use the steam workshop? #nofuckingsense