It's TRUE but there's fun in open back headphones. They are obviously better in imaging & wider in soundstage. you probably know the shortcomings of listening to headphones. In case of speakers, a small amount of sound from the left channel comes to right ear canal & vice versa. this creates better imaging. but in case of headphones, the sound of left & right channels goes to each ear separately. It lacks the soundstage & Imaging, if not driving from proper source. there are facts like b2bs, crossfeed, head related transfer function (the point of source from where the sound seems to come virtualy) which are always better in case of open back headphones. My favourite headphones are pretty much all open back headphones. But there are also closed back headphones which has surprisingly open. You should study a little bit. but for overall comfort for long term listning you should always consider open back headphones in my opinion. Though they leak a LARGE amount of sound.
Just wow. Study? Really?
This isn't about the sound quality, imaging or soundstage (Grados from RS1i down don't have a very large sound stage actually). In case you didn't read this topic it is about sound isolation from the environment and our strong advice to the OP to desist in listening to music at dangerous high volumes.
At the moment the topic is drifting toward closed backs to save the OP from permanent hearing loss, and yes, at the cost of sound quality. ..........