At this point I don’t think any company should be relying on on-prem solutions remaining on-prem which aren’t open source. There’s too much to be gained from a cloud + SaaS business model. If you want to be either on prem or just avoid cloud lock in, open source is the way to go. The user just has much more power in the context of OSS than they do proprietary software.

That being said, it’s unfortunate that OSS in many areas lags behind proprietary software in so many different areas, and it’s clear that for many different business use cases properietary cloud services are going to be more cost effective than OSS. As the deployment and ops aspects of software becomes more automated and simplified, I think this might begin to start shifting back in favor of OSS though.