翻了后，觉得这句话前后好像不搭边啊，还请各位仁兄进来指点一下

我们一直都在盲目（的行动）直到今天这个事件（的发生0我们本来可以帮助他们的
could have helped 表示虚拟语气。。。本来可以做某事（但是实际上由于什么原因没有做成）

原句相当于：

Until today , we were kept in the blind about this issue , and we could have helped them (if not in the blind) .

有没有原文？
我感觉前面换成We've been kept in the blind until today about this issue比较好