The level design in Order of Ecclesia was flat and uninspired. It was chock full of long and flat hallways that were interspersed with vertical "stair" rooms, and the best word I can think of to describe a lot of the larger rooms is "zig-zag". It also had its fair share of reused rooms as well. I particularly remembering one mountain level using the same bridge room at least three times. It tried to be a modern day Simon's Quest but suffered from the same design problem, in that every encounter needed to be easily accessible from both sides due to the need for backtracking. This led to a lot of "floaty" enemies and "wall" enemies, and not a lot of laid out encounters like something you'd see in any of the Classicvanias or memorable rooms like Symphony of the Night.
So, you argue that Shanoa finding descendants (a whole village of them, in fact) to the Belmonts when it was believed that they had disappeared, and discovering that Dracula's power can be dissected and used against him, along with informing us that there ARE other institutions bent in fighting Dracula aside the church, is one of the most insignificant stories in the timeline?
Holy crap.
Umm, yes?
Any complexity the story may have is nullified by the fact that it doesn't matter. So you find Belmonts. So what? It doesn't have any ramifications to the overarching storyline other than the fact that they still exist, which is something we already know because of AoS and DoS. And Ecclesia may be unique as an order, but its not unique in its status of being a non-church entity bent on fighting Dracula. Heck, the Belmonts aren't even always allied with the church.
That, and I've never liked the Belmont disappearance to begin with. The original explanation was just that other Belmont-daughter families took over the job, which made sense, but IGA had to go and make it a
thing with meaning, yet never gave it any other meaning. IMO, it was just a means to the end of getting non-Belmonts into the spolight gameplay-wise.
It feels like a gaiden, and it should remain a one-off gaiden.