I think it's good to go back with your eyes open. I found the memorial very interesting, I found myself reading all the scriptures with new 'eyes' looking at all the surrounding chapters, giggling about what was said on here about 144,000 and how nothing else in the whole chapter was literal but they decided that number is!!
I came out of there a lot lighter. I dont have any illusions you could go there and upset anyone, they would just think you were one of those crazy postates and that they were even more right!! But it might be good for your own process, bit like closure.
Bit like bumping into your ex when you've found a real love, you wonder "WTF did I ever see in them!!
Poppy