The hourglass PVP trinket for sinking champions is very difficult to get, you need to lower the grind to do so.
the number of champion ships sunk to get this trinket is 30, it doesn't seem absurd, but I'm at levels 1103/1327 and I only got 8 for each pvp company.
The problems are the lack of champions, but mainly the lack of champions from the opposite company, unfortunately some things don't count if the opponent represents the same faction.
Decrease the grind required to obtain these frames to 10 or adjust the pvp to encourage players to maintain streaks and count champions from the same faction defeated.