Ah, no see the point is that if you successfully exploit your system to install a homebrew launcher, but the exploit is fixed by a firmware update, then hopefully already exploited titles can remain exploited.
If an exploit is no long usable, the least you can do is keep your homebrew launcher title intact by changing it enough, or making it unique in that it won't be removed by a firmware update. If your homebrew launcher is pruned during the firmware update and you have no exploit to reinstall it, you're screwed.
That way you can also hope to still continue using online play or the eShop as well.