Look at it another way. For some people, 20 merits is a big deal. For casual players it might take all their free time one night just to prepare for the fight. It can be a lot to ask of someone, especially if they don't need/want anything.

Not to mention that doing the fight on normal to ensure the win means having to deal with likely 0-1 drops loading and only random Rem's tales. Unless Olor's enfeebling gear is perfect in every other slot, there are probably more sensible and reasonable ways for the LS to help improve her gear than to do this fight.

SE's solution to reduce the merit cost to 10 and to not randomize Rem's is a nice start, but I think the low drop rate on Normal difficulty is a huge turn off for a lot of people. They really should improve that if they want more players to attempt the fights more than once.