Why is $COMPANY not open source in 2020?

There are no more valid reasons not to make your code free. Security? If that was your safeguard, you are already dead. Afraid to show pajeet.java publicly? Nobody gives a shit about bad code. Competitiveness? Code is just a tool, you still have your more valuable infra.

it's just because old-school developers and high-level executives who think bullshit like "if it's foss, people will steal our shitty software and we won't look professional!"