Your arguments against dodge seem to be based on the idea of "realism," and I would like to say as far as things go, this game is not very realistic. When creating new game mechanics, balance and enjoyment I think take higher roles than how realistic looking something is in a game fighting giant aliens.
in the interest of balance i purpose that aliens get side dodging, and a FORWARD dodge, but no back. in the interest of balance, i suggest that this forward dodge has twice the range of a human back dodge, and twice the speed. this is for "small aliens" at mara it can be adjusted, then rant will have a rediculously small dodge.
kind of like how human dodge should be modified by what armor they are wearing. is is modified by armor, isnt it? if not, making it so will go a long way to balance.
or, we can do the easy thing, disable human back dodge. it is OP and unbalancing. especially when used where there is a negative elevation behind the dodging human (for instance, in the hall of ATCS, humans can dodge a mile if they back-dodge at the top of one of the ramps)
my interpretation of developer intent is that offence is to be rewarded, defence less so. dodge runs counter to this sentiment as it encourages a far more defensive style of play. so, in the name of balance, not realism, i ask that back dodge be removed.