Now I finished first play and started play some other CRPG I realize that it has an exploration quality quite above many CRPG, despite I admit the exploration design has weird points.
The comparison with Trails in The sky is interesting. Overall the Balrum indie can't be compared to Trails made by a team of pro, almost everything a lot better in Trails with one exception, the exploration. Well there's few other points but they are less significant, like drops and items set, crafting, equipment, secondary activities, character building. But that can be argue for equipment & character building because Trails use a special Orbment system that can compensate the non existent character building (classic old JRPG approach) and the poor items and equipment system.
The problem of exploration is how to fill it. There's the tourism value, combats, NPC, find your paths, tricks and puzzling, secrets and hidden stuff and stuff around the corner, stuff to discover, events, more.
Trails maps have structures, when Balrum very few, but Trails structure are far to have a quality good enough to generate a good paths searching, an example of high level achievement in that matter is DAI and at this quality level this element achieves something. But Trails tries a bit but its pointless, and Balrum doesn't try much at all.
Trails outdoor and dungeons have a very weak filling, it's mostly pointless simple combats thrown and respawed, there's abilities to sneak through many but even this tiny mini game in the game becomes repetitive and tedious, there's few stuff to find but it's very few and very basic, moreover the drops are very basic because the set of items of the game is very basic, there's very few dungeons and most often you need wait the story point allowing enter in them.
Trails towns are better done in that matter but not that much, it's just shops and NPC, but every NPC has his little dialog and main story events can make them evolve. Add to that a little bit of tourism value, and some shops. That is great alas it's nothing more. Stuff to find, almost nothing, secrets and tricks and puzzling almost nothing, dungeons one basic in one town.
Balrum just blow out a game as Trails on that matter, ton of little tricks, ton of stuff to find and overall good drops thanks to a much better set of items, also plenty great drops/stuff to find through plenty very special items with very special abilities, many little hints (visual or sounds) around the paths and to hint mildly hidden stuff, plenty little dungeons with each adding most often two more tricks aor a special combat, plenty special places you want check, and a good amount of NPC to discover in outdoor.
At reverse trails is the typical example of exploration filling done too much with an heavy abuse of little pointless combats spread everywhere. Plenty Balrum tricks could be too simple it's still allow build a much better exploration than in many CRPG. Also that design idea of many little items doing something very special, is a great idea I hadn't see before or I forgot. Many CRPG should borrow this design idea.
Don't be wrong, Trails is still a great JRPG, and I agree indie Balrum can't pretend compete.