The name of God appears nearly 7.000 times in the Hebrew canon. The name of Jesus appears much less than that in the NT. So, numerically, the name of God is of no less importance than the name of Jesus.
Tradition has it that because the exact pronunciation of the name of God (YHWH) is unknown, the name has lost its original importance within the Jewish world. The name of Jesus has taken over the Hebrew tetragramaton in relevance, so it seems.
Now, have you ever wondered if we can be certain how Jesus' name was pronounced 2.000 years ago? I don't think we can say with certainty how Jesus' name was pronounced in Ancient Greek, even though the Greek text SHOWS the vowels used in his name originally. There is even uncertainty how those vowels were originally accented.
Modern Greek is pronounced somewhat differently than Ancient Greek, which means that Greek Christians today may pronounce Jesus' name not EXACTLY as ancients did. Greeks talk about the "reconstruction" of Attic Greek (The Reuchlinian and Erasmian efforts come to mind).
Further, Christians of Germany, France, Italy, Portugal, Spain and a host of other countries don't even bother to do a search in order to ascertain the original pronunciation of Jesus' name. If they did, they will find, that everybody pronounces Jesus' name differently. In fact it is also a futile effort to make everyone pronounce the Hebrew name for Jesus for the majority of Christians today, even if we were certain of the 1st Century Hebrew pronunciation.
What this simply means is that all this NOISE about whether YHWH stands for Jehovah, Yahweh, IAOE, etc. is nonsensical. You will grow gray hairs before you find the true pronunciation of YHWH, or even Jesus name. Oh, you may say, "Wait, we have an idea of how Jesus' name was pronounced because vowels were used in the name."
It does not matter. In the real world, EVERYONE pronounces the name of Jehovah, Jesus and a host of other biblical names differently. If salvation depended on this, none of us had a chance.
What is important is to use the most common pronunciation for these names in our language, exactly as Bible translator Steven T. Byington stated in the Foreword of his version. We may lose favor before Jehovah or Jesus if we fail to acknowledge that Jesus is the way to the Father. (John 14.6) Accepting Jesus is not enough. We have to accept his Father equally as well. (John 5.23) Interestingly, almost every religion gets the simple message of John 3.16 wrong. Some worship only Jehovah and ignore Jesus in their lives. Others focus entirely on Jesus, and dismiss the fact that Jesus said that his Father was GREATER than him. And that his Father was his God. (John 20.17) As stated by a few others, by accepting the NT invitation for Christians to become Jesus' Witnesses, we become Witnesses of Jesus' Father as well. One cannot separate one thing from the other. It was the Father who sent Jesus, his Son, to do the Father's wil as his representative. This concept is repeated time and again throughout the Gospel of John, yet some surfers here seem to ignore this altogether.
Anything less or more is downright lack of basic factual knowledge of language differences, or hypocrisy.
Take your pick!