Atmos and streaming are the in thing so the marketing types take notice, the bean counters decide more money can be made by the record company (not necessarily the artist) with streaming. The artists who own the publishing rights to the music make money either way. If mono on wax cylinders becomes trendy......... they'll appear in a box set!
Streaming is also not what we could call environmentally friendly, the data centre/server farms take huge amounts of power (
I read somewhere world-wide more than some countries, I saw a figure of 200TerraW per year, & are around a 1MW per square metre), and probably more than manufacturing a disc production run and distributing it. I wonder if anyone has done the calculations? If it is much lower, the greener disc option should be pursued!