Bundling is a legitimate market strategy and not inherently anti-competitive. So long as the overall package is not sold at a loss I don't think there's an iss

Bundling is a legitimate market strategy and not inherently anti-competitive. So long as the overall package is not sold at a loss I don't think there's an issue. There's room for independent apps in the face of a bundled solution. By focusing on one thing you can do it better and cheaper than the packaged solution. And indeed Slack, at least to many, was worth the extra money.