I was not suggesting that an FPGA manufacturer would ever make a part like this. I was suggesting it would be interesting to build an adapter PCB that takes a

I was not suggesting that an FPGA manufacturer would ever make a part like this. I was suggesting it would be interesting to build an adapter PCB that takes a BGA part and combines it with level shifters and provides a 'through-hole' usable 'package' that could be used in some vintage applications. The concept of using this in a more vintage hobbyist 'build-it-yourself' context is unique and not something I would expect widespread use, thus the concept that this would be an interesting project for some small group of people. For example there have been many projects using the TinyFPGA boards in a manner that is similar to this use case, although with a lower pin count given the DIP sytle layout. It was my mistake to not make that clear, especially when I mentioned the QFP package, and then implied a through-hole solution. I should have said a through-hole PCB based solution. Sorry!