People are complaining about cover because it is borked, not because they don't like the idea of it.
Not being able to get into cover when snared/rooted, having delays getting into cover when it should be instant, getting knocked out of cover immediately even with hunker down active, and lets not forget most stuns for some reason remove you from cover.
I love cover, when it works. Sometimes though I feel like being un-interuptable should be removed and it just changed so you can't get knocked back out of cover. No other class has to deal with being denied almost their entire arsenal of staple dps abilities from one mechanic (knockback)