That's a different requirement. Personally I think that not liking something is not a good reason to not use it - it does what you want without building something custom.
If the requirement is to include content from a page without using an iframe, off the top of my head i can think of 2 approaches:
1) Make an AJAX request to the page and use selectors to grab the content you want.
2) (Assuming AEM 6 or above) You could use a Sightly class coupled with JSoup and grab the page content and render it out using selectors again. This would be cacheable whereas #1 would not be.