THRIFT-819 to me is a pattern of dialog I'd like to see improved. Too often I see issues filed in Thrift's jira that get turned down by Facebook folks without any input from non-Facebook committers. That tends to institutionalize the idea Facebook retains tight control over all architectural decisions for this project.
One way to resolve this is for the Facebook employees to continue to comment on these issues but to ask for input from other committers before closing the issue. Another approach is to recognize the pattern and return to the dev list with some educational posts about the goals of Thrift and its design. Those suggestions are not mutually exclusive.