Microsoft crunched the numbers for the platform rather than the software and decided to steamroll over the ODF format[1]. The largest revenue for MS Office comes from enterprises who do care about paying less for the OS if all they are going to use is a wordprocessor or spreadsheet. Are you claiming that desktop linux would not have been adopted by enterprises if they could get the same document render and be editable exactly the same manner irrespective of the vendor software being used ?
MS has had a long dirty history. I am not opposed to giving them the benefit of doubt but it is way too little, and way too early to do this right now.
[1] https://en.wikipedia.org/wiki/Standardization_of_Office_Open...
https://en.wikipedia.org/wiki/Standardization_of_Office_Open...