No it isn't. You can't deploy it as a portable app without some development changes. If you read up thread you can see someone did actually make those changes. It's not rocket science.
If devs want to kick an issue to the wishlist that's fine, but this "not a bug; won't fix" attitude is very tedious for users to deal with. We're here trying to promote KiCad, but it's really disheartening when perfectly reasonable suggestions for improvements get rejected for no good technical reason.
To make it clear we're not demanding that devs do work for us. We're just asking that feature requests are assessed on technical merit, and anyone who wants to volunteer their time gets an idea what sort of things users are asking for. There is absolutely no harm putting items on a wishlist, if they make technical sense. There is no expectation that anyone has to work on them.
Also, as I said, the small items are useful for new or occasional contributors who can pick up small changes while the more experienced devs can tackle the major items.