Why have I stopped receiving Weapons after Leveling up?

I am currently Level 357 and have noticed the amount of weapons I receive after leveling up has significantly dropped. I noticed after around Level 250 that I do not get any weapons after leveling up. I cannot remember the last time I actually received one. Is this a built in strategy to make the game harder or am I just getting bad luck?

The free weapons you gained on level up were based upon your gem mastery rather than your level. IIRC, there are no more weapons to be gained in this way once your gem masteries all hit 40 or 50. The vast majority of weapons are obtained via weekly events (and soon will be able to be crafted in the soulforge).