I'm still running BXEB Gen1 strips on several fixtures I built almost 4 years ago.
Whilst the newer generations offer more efficient output, the Gen 1 will still get the job done.
If you're only working with 190(ish) watts in a 2x2, the gains in efficiency would be entirely negligible. Splitting hairs, so to speak.
Long live the BXEB.
The nominal amperage for the 280mm Gen1, is 350ma. With that particular driver, if you ran all 24 in parallel, the 7.8 amps from that driver will be divided up to around 325ma for each strip.
At that current level, those strips can be run without any dedicated heatsinks at all.