Not sure I understand your reasoning AT ALL here. You seem to be knocking Apple’s own simulator, which in my years of experience with it, quite perfectly matches what I see on ACTUAL iOS DEVICES. Makes zero sense to pay a penny for something else that won’t do the job any better.
Safari is not perfect as I see things that I see in FireFox and/or Chrome. So I test in all three of those browsers on my 5k iMac, in addition to testing in the simulator.
When designing my sites in Freeway I hardly ever tested in the simulator because my Freeway sites are NOT responsive. But since responsive design really does target mobile devices more than desktops and notebooks, I feel it critically important to test on iOS devices. I don’t go so far as to test on Android, as that is yet another layer of bother I’d rather not contend with, and I just assume that if iOS handles my site well, stupid Android (yes, by pro-iOS bias seethes!) will probably display it about as well.
iOS 8 may be dead, but since I am unsure how to test iOS 9 (my iPad 3 Retina is locked to iOS 9 and cannot be upgraded, and yes, it is STILL in use, and NO, I am not alone in this regard), I can only use the simulator to test iOS 8. Is paying $35/mo worth it to get iOS 9 testing. Ha! Are you kidding? NO. Absolutely. NO. But I suspect that there isn’t a huge gap between iOS 8 and iOS 9, and as I’ve repeatedly said, just because you don’t use older iOS devices doesn’t mean other people follow your cutting edge lead.
It took many years and much review of my web visitors (as per Google Analytics) before I make the decision to ditch support of Internet Explorer 6 in my Freeway sites. Ditto for my decision on IE 7 and 8. But I still support IE 9 through 11 because Google Analytics shows me that a huge percentage of our web visitors here in Japan use those browser versions. And that’s really the crux of the matter. I am in Japan. Nearly all our web visitors are from Japan. It therefore behoves me to cater to the needs of our Japanese web visitors, which tend to hold on to older technology longer than cutting edge Americans and Europeans do. Hence all I’ve written on this subject.
Now that my defensive argument is finished (and hopefully I won’t have to continue to defend myself on this point, because no one will change my mind about it), I would like to hear from someone who can tell me about browser compatibility with Blocs. No biases. No questions about “why do you care” and such. But just unbiased information that can technically explain what browsers are not supported by Blocs 3.x. For truly, as one can see from my previous post, browsers used in iOS 8 display Blocs 3.x sites incorrectly.