A thread.
In addition to designing kits for semi/pro clubs (NPSL's Dayton Dynamo, USL's FC Cincinnati), I also spent 7 years working in soccer retail, and have connections in Nike and Adidas' soccer divisions.
1) You're not going to make everyone happy. It's just an impossible goal because... you know, opinions.
2) Most clubs don't have full control of the process.
Let's focus on #2.
While smaller companies -- Admiral, Cappelli, Inaria, Macron, etc. -- are often happy to make completely custom kits, they do so to differentiate from the big boys... and because they have the bandwidth to do so.
Due to the sheer volume of their production -- across more than just pro jerseys, but their other gear too -- custom designs have to be worked into the schedule months in advance.
Completely custom kits require a reset of the manufacturing equipment, and the more of those there are, the less they can produce.
They could shoot them down though, too.
That's because those clubs are billboards for Nike/Adidas, and they have priorities of their own to push.
But due to all those variables and the lengthy production timelines, most major manufacturers look to finalize kit designs 1-2 years out.
So 90% of the time, don't get mad at your club if you think the kits are too expensive. Unless they're drastically higher than others manufactured by the same brand.
Most leagues have competition committees that approve color combinations so teams don't clash, particularly for TV.
Leagues have now begun to adopt the policy too.
That's why kits in MLS have been so similar recently.
These things aren't designed by amateurs, and there's a lot of thought and research that goes into the process despite the relative uniformity of design.
And they did well within those restraints.