It's not a bad idea & I too like the choice to let the ship itself get a Star Trek curveball tale, for a change. Its reminiscent, in that way, of Parallels, & how, in their final hours, they finally roped Worf into one of those too, that he never really got, unlike other characters.I'm sort of middle of the road with "Emergence", but I absolutely agree with their choice to make one of the final episodes be about probably THE most important character of TNG: the Enterprise herself.
Part of the brain storming of the season must've had a few "What's some fun stuff we never really did?" pitches. Worf never gets a Future Imperfect or a Tapestry, & neither does The Enterprise itself

Emergence just got run thru the mill a bit too fast imho. Not a whole lot of thought went into it, by my measure, unlike Parallels. (which is great) It's a rather superficial episode, at a rather substantial time in the show, & it could've been more, if they'd had the time/resources to give it some more love.
However, there is a place for those flash-in-the pan stories, in Star Trek. It too is a Hallmark of the brand. So, it's not altogether out of place. I just wish it had got more oomph, for where it landed in the lineup lol
I bet if they'd bumped it up to earlier in the season, between maybe Gambit & Phantasms, people wouldn't be so hard on it.