I got the feeling, that too many of Starfleet Command officers has become what Oliver Queen of Smallville said "Generation of Critics instead of Leaders" for judging selfishly what late Future Admiral Janeway did by changing the Timeline. It's so annoying to see such a Commanding Officers could do that... It's remind me of those stupid Captains who shot at the Aventine on The Falls: 4, so stupid and narrow minded.
It seems that only people of DTI and their counter parts (whether its from other power temporal division or Future agents) understand the important benefit of that "messing with timeline" to the existence of peace universes without Borg in the future.
What will we have in the next story? Major Non-Ethical Medical Research?