I agree with others that have said her pussy is mellowing like a fine wine. Also agree the more experience, the better. Looks better, tastes better, and works better!
I'm interested why you asked if we think it is ruined. Is it soley because she has been fucking BBC for awhile now? If you're still able to get your share of her pussy, is it looser now than you recall?
As my wife has aged, her pussy tends to gape quicker during use, whether by toy, masturbation/fingering, or cock. She has even reached a point where she has double- cock penetration in her pussy fantasies, so as often as I can, I penetrate her with both my cock and a vibrator. Or if she gets horny enough, she likes me to try to fist her or take a 3-4 finger bang. The point is, it takes longer for her pussy to 'recover' now, and if we're able to do any of the above, she tends to gape until the next day or so.
It just makes for better eatin!