No, fuck that, and fuck anyone who thinks that way.
If it tricks me into an installation (or tries), it's malware- period. Block, remove, disable scripting, whatever. If someone who isn't full tech browses to 100 sites and gets 100 bullshit whatever the fucks, he shouldn't have to spend hours running uninstall 100 times, while someone is like "hey, it's not malware, we just hijacked the search result for an open source project, made a name that looked similar, and started serving adds on your desktop, installed seventeen fucking advertising bars that spawn more in your browser... but you clicked on it, so you must have fucking wanted it, and after all, if you uninstall everything, it's gone."
Funny, it doesn't pop up a thing every time you start that says "Hi, I'm the shit factory that spawned when you fucked up your firefox install. Click here to be rid of me!". No no no, oh no- now you gotta browse to your add/remove programs, with a different GUI every OS release, find whatever the thing registered itself with (and hey, it also registered seventeen other dumb fucking things), and get rid of that.
If it is EVER installed by accident, if it ever comes with a default checkbox when you download java, if it ever tries ANY fucking trick- IT IS MALWARE!