I don’t know which small phones have been released recently but I’ve used an iPhone Mini and decided against it. Not because it’s small but rather because it’s not small enough.
See, I do like a big screen more than a small one. That said, the phone is something I carry in my pocket so there’s a balancing act to be done there. What was really great about the original iPhone’s size was not that it had a small screen. It’s that it was small enough that I could reach all corners of the screen with my thumb.
None of the recent small phones I tried had that advantage. In that case, since there’s no clear usability advantage to the smaller model, I’ll take the larger screen instead.
To answer the question, no - you’re not the only one. People have written and talked about this extensively.
Personally, I think there’s a lot more nuance to the answer. Also a lot has been written about this.
You mention “communities that are security conscious”. I’m not sure in which ways you feel this practice to be less secure than alternatives. I tend to be pretty security conscious, to the point of sometimes being annoying to my team mates. I still use this installation method a lot where it makes sense, without too much worry. I also skip it other times.
Without knowing a bit more about your specific worries and for what kinds of threat you feel this technique is bad, it’s difficult to respond specifically.
Feel is fine, and if you’re uncomfortable with something, the answer is generally to either avoid it (by reading the script and executing the relevant commands yourself, or by skipping using this software altogether, for instance), or to understand why you’re uncomfortable and rationally assess whether that feeling is based on reality or imagination - or to which degree of each.
As usual, the real answer is - it depends.