I don't think thats a BUG. It's just something they have not implemented. Surely if it was a bug, the option would be there but it wouldn't do anything?
Huh? It has been there since first beta of iOS 8.0 all the way through 8.1, implemented and working. 8.1.1 beta broke it, still not fixed. Good job by

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I am familiar with this workaround. I just find it unacceptable that such basic functionality goes "unnoticed" (I've opened bug report from first time I saw it) from 8.1.1 beta to 8.1.1 to 8.2 to 8.1.2. Just a shameful state of this software.Still broken but there is a workaround. If you close the tabs then close safari from the multitasking tray and go back into safari the iCloud tabs will be gone and will also disappear on other devices. So it still works but it requires the extra step. Better than nothing for now I guess.