Springhead, half the people you are talking to on the group are Murano sellers. We challenge each other all the time on this and other groups. There are no absolutes when it comes to glass. And there are few people -- even the experts -- that have a fraction of the answers.
About the Chinese glass -- Some of the Chinese pieces are actually very good quality. I am attaching a copy of a nice one that rivals the work of Orient & Flume. Chinese do get a bad name because much of the modern work coming out of the country is shoddy. (I have a Chinese copy of the vase pictured that is low quality work.) The Chinese used to be among the most masterful in making glass, pottery, and ceramics. I am sure that there is still a lot of quality pieces made.
Again, as I said before, I do not know if your vase is Chinese. It just reminded me of some of the vases.
Anita