OK, I'm going to respond to your points out of order, so as to avoid typing an essay:
History - I am able to tap the pages. I went to Papa Johns website, click the security thing twice (their fault not Nokia's), click Online Specials. Put in my zip. There are no Papa Johns in my area, which doesn't make me sad because I don't like it.

Then I click Back and select the previous page, it takes me there (it happens to be the same Search page, since it dumped me there when it coudln't find any stores). Click Back again, answer the security question 3 more times,, and it shows me. This only proves that PJ's website (like their pizza) sucks.
Zooming, width, etc - I am vision impaired so my fonts are cranked. This also affects height of the text areas, such that selecting them is easier. I do scroll side to side, because I can empathize with web authors trying to make their damn page work with every device out there. FWIW I have never had trouble dragging that Zoom around. I don't think it's supposed to automatically fit the 'text column' because guess what? The web is no longer text-only anymore. It's better to preserve the layout of the page than to fit to the text column. Maybe you would be happier disabling images, I don't know.
Lag closing apps -- It's a little laggy (takes maybe 1 second to close the web). Not too big a deal really, there are a lot of seconds in the day. I don't usually bother closing the web, just background it with the red key.