I have no burden of proof for anything.
You stated your opinion, like most people you don’t know what their talking about because the have never received the Holy Spirit with the evidence of tongues.
Biblical Example —
While Peter was still speaking these words, the Holy Spirit fell upon all those who heard the word. And those of the circumcision who believed were astonished, as many as came with Peter, because the gift of the Holy Spirit had been poured out on the Gentiles also. For they heard them speak with tongues and magnify God. Acts 10:44-46
JLB
How did they know they were magnifying God, unless they understood the languages? Perhaps one says some spoke in tongues and others magnified God in Greek or Aramaic, or they all spoke in tongues and then magnified God in Greek or Aramaic. Any way you look at it, there requires an interpretation about what happened because we don't have a video of it, so it will be speculated based on the bias of the person interpreting it.
Quoting one verse of scripture like this and assuming that I would agree with your assumptions about it won't get us down the road of agreement. We have to look at the scripture as a whole. When the Bible speaks of something several times, and only the first time has certain details, the writer is assuming that the reader will understand that the details given on the first event will be the precedent for detail on subsequent events. In other words, the form and function of tongues did not change from Acts 2 to Acts 10, and didn't change from Acts 10 to 1 Cor. 14.
What they spoke then was languages that someone understood. It is only when we get to 1 Cor. 14 that the idea of an unknown language is introduced, and that was because of the misuse of the Corinthians. The fact that those languages were unknown was due to some people using those gifts for the wrong purpose. It was not because they spoke gibberish as is done today.
So then, what is your agenda? What are you trying to do with this conversation? Are you trying to convince me that your practice is of God, and is Biblical? (if so, you're failing miserably). Are you trying to just win an argument? (if so, that's quite immature). Are you trying to add value to the conversation? (not much). What else could you be trying to accomplish here? If you are trying to accomplish anything at all, then you do indeed have a burden of proof.
So at this point, it begs the question, what are you trying to do here?
TD