Yeah, I did.
I don't understand the issue you're having with that.
I don't have an issue

I took that as a serious suggestion how you would continue their storyline and commented on that. What is unclear?
Why give more development to reaccuring characters if you can't do justice to the 9 main cast members you already have? Doing so just pushes good characters like Tuvok, Tom & Be'Lanna further into the back ground. I personally would much rather see Tuvok get more scene time than Ensign Equinox Nobody.
However, thanks for showing why the writers didn't bother developing many of the main cast and why the show needed Seven and focused on just the 3. The interests seems to be on other minor characters than that of the main cast.
VOY was certainly able to give development and screentime to all the main characters, and others. It's not like it lasted for one half-season. It lasted for 7 seasons, 170+ episodes. The reasons why some characters, like Chakotay or Kim, didn't get proper development, is not for lack of screentime - in fact, they got plenty of that - it's because the writers didn't seem to know what to do with them (and might not even have cared). Screentime doesn't equal character development, and a character can be fleshed out and get meaningful storylines in a very limited amount of screentime. Guest characters and characters in miniseries/TV films as well as feature films are a testament to that. DS9 didn't have many more episodes than VOY, but it didn't have a problem with giving every main character something meaningful to do, and fleshing out a bunch of recurring characters.
You seem to be working under the assumption that character development is something that comes in quantifiable amounts that can be distributed among characters, and if you give more to one character, you have to take away from another. Or, in other words, that characters exist in isolation, that they can't share screentime or storylines, and no character development comes from interaction with other characters. In fact, it's from interaction with the other characters that the development usually comes. The attention given to the character of Garak on DS9 didn't hurt the development of the character of Bashir; Dukat, Winn and Ziyal didn't hurt the development of Kira; Eddington wasn't detrimental to the development of Sisko, Martok didn't hurt Worf's storylines, and Female Founder didn't push Odo into the background. In fact, it was the opposite. On VOY, the best Tuvok's episode involved interaction with Lon Suder. There's no reason why the existence of a few recurring characters from Equinox would harm the development of the main characters; quite the opposite, the issues that they would have faced and brought in could have been a nice opportunity to give crewmembers such as Chakotay, Kim, Paris... something to do, other than agree with the captain and fool around on the holodeck. We could have seen them helping the new crewmembers adjust, getting into conflict with them, having moral debates with them about what they did on Equinox, exchanging experiences (for instance, Chakotay and Torres could talk to them about how the Maquis adjusted to the VOy Starfleet crew, etc.).