In practice, EU already does allow them. The software invention just needs to be disguised as a machine. Industrial property lawyers know very well how to do that and it's unfortunately very common.
Too be fair, the EU also never managed to build a large scale software industry. I’m not saying this is only because of patents, but it’s not a great example to uphold.
Someone should tell Spotify, SAP, Sage, Nokia, and ARM they're not large scale.
Compare that to just Bay Area alone or one Alibaba and then tell me about large scale...
The EU once upon a time was aggressively trying to implement them but they were canned by members . It's only a matter of time I feel before it is attempted again