In the first screenshot you have the top paladin and blm of the datacenter baby sitting you vs some pretty below average tank and melee. You hardly had to do anything to survive and get that win.

In the second screenshot you are playing vs complete randoms even 1 unranked healer.
The poor guy was probably back padling while dying and never played feast again because i have never seen him.

The frontlines one just lol. For all i care those could be matches vs randoms without heal doing frontline roulette for esos/lore. I'm sure people can link you here screens with 20+ kills.