Are people purchasing and installing a dozen items at a time that the process is so arduous? I point the installer to a temp folder. That's the quick and easy part. For me the time consuming part is renaming/moving stuff because I want that V4 dress in V4 clothing, yada, yada, not whatever the stock setup is. Once that's done, I create a .rar archive of the temp runtime and delete the isntaller - never see it or mess with it again. I know that at least some of the installers even 'remember' the path to my temp folder.  The amount of time saved using a .zip archive over an installer is 3-4 mouse clicks and perhaps 30 seconds at most.  Now for someone who is installing multiple items all the time, I can see the annoyance. I get new things rarely enough that it's just not a major issue.

I will say that DAZ could/should have originally written their own installer and had it memorize every option, giving people the choice of a single click install. At least, they could have stuck with one installer vendor but perhaps licensing costs came into play who knows. As it stands, if you wanted the installers gone you're apparently getting your wish, just not the way you expected.  On the EULA at purchase thing, it may be crazy, IANAL, but it seems to me that even if the file were transferred to someone (though not legal) other than the purchaser, the click-though still binds them legally, even if they don't give a squirrel's scrotum about it. Different people have different lawyers with different views, but if I've paid those who sharks refuse to eat out of professional courtesy, I'd probably listen to their advice.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken