Oh, I see!
I don't know what Lattice's life cycle for its products is but given that they're evidently still making CPLDs from 30 years ago I wouldn't worry too much. I think these particular FPGAs are only about 7 years old, too; the datasheet (DS1050) lists two revisions, both from 02015, and I recall looking for such low-end FPGAs around that time and not being able to find any.
The last time I went to an electronics hobbyist store I was amazed to find that everything was on breakout boards. They didn't sell chips, they sold boards, all with 2.54mm Molex pin headers on them, or sometimes rows of holes for you to solder the pin headers to. It was so extreme that they had a ULN2003 septa-darlington on a breakout board, by itself, with a pin header connected to each of its pins. A DIP ULN2003! Which has 2.54mm pins on the actual chip!
So apparently electronics hobbyists now barely use breadboards or soldering irons. They wire together boards with jumper wires, using the pin headers that come pre-soldered to the board.
In that vein, it looks like SparkFun sells a Lattice XO2-1200 breakout board with 2.54 mm pin headers for US$21.50 https://www.sparkfun.com/products/14828 but they're out of stock, and a similar Lattice iCE40LP8K breakout board for US$41.95 https://www.sparkfun.com/products/14829 which is also out of stock. And, holy crap, that chip has more logic cells than the iCE40UP5K chip I erroneously thought was Lattice's biggest. And also the US$7.95 https://www.sparkfun.com/products/17131 in Adafruit's Feather wing footprint which is not out of stock and has an Intel MAX 10 FPGA along with an Atmel SAMD51 μC.
Anyway I feel like, if you wanted to ship an FPGA thing as a kit and home-assemble it, you could solder the BGA FPGA onto a small PCB with 2.54mm pin headers along the edges so the kit assemblers can plug it into their breadboard or connect wires to it easily. Basically the PCB takes the place of an epoxy or ceramic DIP and leadframe.
I'm not sure the traditional Heathkit-style "kit" market exists any more, though. 50 years ago you by buying the unassembled kit you were saving the salary of a lab technician in Benton Harbor who would have assembled, soldered, tested, and troubleshot your device by hand, at a cost of potentially over US$100. Now you're saving the cost of a pick-and-place machine at JLCPCB; they charge 0.15¢ per pin, last time I checked, with a minimum order quantity of 10 boards.
The benefit now of getting parts unassembled is not that it's cheaper; it's that you can assemble them into something different, shortening the feedback time on your own designs.