For a smaller installer? How about users like myself that use those modules, screw us?
If there ever is a conflict of interest between me and you, I would go for what benefits me, even if it means the opposite for you. I expect you to do the same? The entire philosophy of Lightroom seems to be (to a degree) "screwing" the Photoshop concept/users in order to make a leaner, more photographer-oriented package. To do so, some tools (and legacy usage habits) had to go.
This is a lot like the DNG or Gay Marriage 'debate'.
I have no/very few opinions on how citizens live their life as long as it does not significantly affect me or society. Thus they may choose any way of organizing their familiy that please them, as long as it is based on consenting adults.
Now, a private company that have accepted my money in the past and wants my money in the future, I do offer opinions on how I would like them to proceed.
If you don't like those modules, don't use them. I'd be super pissed off if the some of those modules were gone, I use them. I also don't suggest the Photoshop team remove all the 3D functionality because I don't use them.
I think it is perfectly okay to ask for removal of functionality. There is even a software term for the problem: feature creep. Every function added to the software adds some cost. You need to QA the software prior to every release, you need to allocate limited developer resources to maintain and improve the functionality, it makes it harder to refactor the software, it clutters the user interface/overview, you need more bandwidth to ship the executable/updates etc.
Now, the real discussion is, perhaps, if those modules really should be removed. I don't know. Users tends to be "super pissed off" when features are removed, so it might not be a smart move by Adobe. Rather, you want to be very conscious about what features are allowed into the product at any time (Apple seems to be good at this, and their share-holders should be happy about that).
I think it was a bad choice of Adobe to "let in" modules of such poor design in the first place. Now that they did, the best they can do is try to improve them.