On my iPad* I zoom to read the text in the Tharg's intro comfortably, but I can manage it without it. (Obviously I definitely need to zoom in for Damage Report.) The comic text is comfortable to read without any zooming, though, despite the pages being smaller than the printed version. I'll admit, part of me would like a bigger device, for the full sized comic experience, but I don't think I'd want the iPad larger for anything else, as it's just that the right size marrying ease of portability with use, internet and apps. A compromise maybe, but a very small one, since comics really are fine on it without zooming.
*second to latest model. The one smaller than the 12" jobby. I believe it was the one that came out after the last iPad air, when they made cheaper options by cutting down on screen tech. Resolution is the same as previous though. And I believe the processor is more powerful, which just goes to show how expensive that retina whatever it is tech actually was. And stuff still looks smashing on it.