Hardly hidden, Jews were obviously aware that when saying the name Yehoshua, they were saying the divine name too, and the praise was to God through his Son. (See Matt 1:21)
Revelation 3:12 is proof that the early Christians knew the name of Jesus’ God.
The idea that you can count up each name as some sort of competition between them misses the point that all attention and praise for Jesus is “the to the glory of God the Father”. (Phil 2:11) So if you’re keeping count then the tally for Jehovah is all the direct references to Jehovah God plus the references to Jesus.