I've always had tight hamstrings, but there are a few tricks I've learned to get around/past that!
First, I gotta say... stretching the hamstrings is really a thing of delicacy. If you overstretch before they're ready, you'll set youself back and they'll get tighter. I learned that one the hard way.
You can always try stretching a bit in the shower. I like my showers nice and hot, so when I'm in there, I just carefully let my upper half come down and get the hamstrings to relax. Not too far at first (one of those things where it should NOT hurt at all), but after a minute or so, you'd be surprised how much difference it makes! Especially if you do it every day, or every other day. It really shows for me!
And, for any moves you might be "held back" on because of tight hamstrings, I'm sure there are other moves to work on, too! I totally agree that those amazing, flexible moves are beautiful, and I'm trying to get to them as well... but being gentle with yourself and understanding your limits, and knowing that they won't be there forever as long as you carefully move toward greater flexibility really makes all the difference! Imagine how awesome it would be to have a bunch of other moves under your belt by the time you get those sweet flexy ones, so you can create new and interesting transitions and combos because of your limitations, and your strengths?
I find the best art comes out of limiting situations. Learning to work around certain things, even as you are working to overcome those limitations, is an exercise in creativity, and can give birth to the most amazing art :)