The DRM still exists, it's just more subtle - they imbed your personal account info into the tracks you buy, so if you die and bequeath your music collection to your kids, they'll lose your entire music collection at best, and go to jail at worst - or possibly pay an exorbitant fine.
Apple's claims of 'no drm' are bullshit, but most people seem to have bought into it (much like Google's 'do no evil' and look where that's gotten us). This blinkered acceptance comes part and parcel with the creeping surveillance society, apparently.
You seem to not understand what DRM is.
Tagging a file with your Apple ID is not DRM. What Apple is doing there is discouraging you from sharing your music with the entire internet, but not discouraging you from sharing it with your immediate friends and family.
An iTunes file tagged with your Apple ID will play back on any music player capable of reading AAC files.
If you die then your entire music collection isn't lost. It's just there on your hard drive. I wasn't aware that your hard drive got deleted when you die.
Your kids certainly won't be sent to jail or fined for listening to it.
Man, the Apple haters get crazier every passing day.