It's market distortion because it competes with companies who charge a fee for maintaining and developing their application, by entering their market entirely cross-financed from a immensely profitable product of a completely different industry.

If it's NOT market distortion, it means it is possible to create and operate a cloud-based multi-platform collaboration application, free of charge for corporate and private use, without the need of any direct revenue stream within that market. I'm not even talking profit, I mean no need for any revenue whatsoever.