I believe the default distribution is:
Rank 1~5 Blacksmith: 5 options
Rank 6~10 Blacksmith: 4 options
Unranked Blacksmith: 3 Options
MVP drop, Fever drop: 2~3 options
Normal field/dungeon drop: 1~2 options
I kind of like this system. Forged weapons have been so irrelevant for so long, I think it will feel nice for them to be able to make Best In Slot for a while.
Yes, if you aren't a top 5 ranked Blacksmith you can't make the best weapon in the game, but the ranking systems in RO have always been rather unforgiving. I don't think that's particularly any more extreme than the Alchemist ranking bonuses, for example.