The requirement of 100 Seal Rock wins to obtain the Field Commander coat is utterly frustrating, especially since you get no progress at all from anything but a win – no matter how well you played or how narrow the victory was. It seems an excessively high wall to lock glamour behind for what is supposed to be casual content – by comparison, you're guaranteed your primal mounts after less than a hundred unsynched victories, but this will take on average 300 twenty-minute fights with no possibility of it becoming easier over time.
Ideally I would like to see it simplified in general – perhaps 100 matches rather than 100 wins – but if lessening it is not an option then perhaps is it possible to shift the requirements for it from pure wins to some kind of cumulative points total?
The current requirement is essentially reaching 100 x 800 points, so a cumulative total of 80,000 points would be the same target, but then you'd still be making progress towards it with a fail while getting there faster by winning.