Long past?!
I don't regard the shameful approval of OOXML as an ISO standard, and all the questionable things Microsoft did in order to accomplish it, as a particularly nice thing to do. There are a lot of NBs that were formed specifically for that purpose that were never again heard from. As it is now, the damage to ISO seems irreversible.
Also, there is the trolling about "Linux infringes 4 bazillion of our patents" empty threats (because if they weren't empty they would have acted) and the failed attempt to sell some of those patents to trolls that would go after Linux users. The fact if failed (because a non-invited group won the auction and donated the patents) makes it not less evil.
No. Being evil is in their soul.
They may be less evil now - I can agree on that. But it's so much more because they are far less relevant now than they were in the 90s than any particular change of heart.
They deserve no redemption.