Which add-ons do not support that?
To my knowledge, my Install & Upgrade and Waindigo's version of that work with all add-ons.
There is only a couple of exceptions where it might not. Such as "packs" of add-ons that may be a zip that contains multiple versions of the same add-on.
But generally, the installers should work with any add-on.
That being said, I'd be more than thrilled if something similar made it into the core. I wrote my version for pretty much my own laziness and it is by far the most useful add-on I use on a daily basis.