It would be good if the "are safari tab reloads so much of an issue?" commenters would read the comments others have put on here..
The 1gb ram issue isn't just about Safari reloads (sure, that's frustrating).
It's also about multi-tasking. My iPad air doesn't do a great job at keeping as many apps "open" as my iPad 4 did.
I'm also seeing the same issue on my iPhone 6, compared to 5 and a little worse than it was on the 5S. I only use a small number of apps through the day, and usually see each one of them reload at some point.
Same with the iPad - a small number of apps in an evening, and see each one reload at some point.
Apple tout multitasking as a convenience feature, but in the iPad air and iPhone 5S and 6, it's not so convenient any more.