^I think that the phrase "by the end of the decade" does generally mean "by the next year ending in 0." Consider it by analogy with "by the end of the century" -- which most everyone would interpret as meaning 2100 rather than exactly 100 years from now.
Granted, but I didn't recall how the article was worded; whether it was by the end of the
decade, or by the end of a
decade. I opted to get the thought out of my brain and on paper, rather than stopping to check the source. Sometimes that leads to stepping in it, but I gotta balance that with the chance of losing the entire thought if I divert what little brain power is left away from what ever is the main focus of the moment.