1, iCab Mobile and a lot of other browsers are also capable of this.
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"Simpler" means programmers aren't allowed to do almost anything, "thanks" to Apple's sometimes pathetic restrictions. (One of the most pathetic restrictions is not allowing 3rd party developers use the fast scrolling of UIWebView for two years; this is why all UIWebView-based browsers scroll so stutteringly.)
To your first point, I know that others do that as well, I just have Atomic so I don't have a need for other browsers like iCab.
To your second point I quote here, I agree that it seems silly sometimes on what the restrictions are but that is not my problem to be honest. I don't jailbreak because I would fear that malware could make it onto my phone since I don't know the people programming the jailbreaks and they won't be liable for anything... plus, I don't need any features I don't have that bad that I would risk the warranty etc. After all, most important is that my devices work. The Apple extended warranty takes care of that - as long as I don't mess with a jailbreak.