The gospel says that God has given us one name under heaven by which we a saved. It appears throughout scripture that God puts great importance upon names in both old and new testament. The bible says there is no other name by which we should be saved, so if the apostles did not attribute that to the name "Jesus" why should we?
I understand that some say it does not matter whether or not we say the right name because God sees our intent but is that just our own reasoning justifying our own error?
The apostles spoke Hebrew, Greek and Aramaic, they therefore either called him Yeshua, Iesus or Yehoshua haMoshiach.
If the apostles did not caste out demons or perform miracles in the name "Jesus" or even use the name, why should we continue to use it?