Almost all of my team has individual subscriptions to sharelatex because we felt it was better from a books perspective to show there is more individual interest in an open source solution than corporate interest. We specifically chose sharelatex instead of overleaf so we could host our own instance. We've largely moved away from using sharelatex but still keep our subscriptions active as a form of support for continued development.

I hope what you say is true about the commitment to open source.