Monastic Legacy + Evangelist

Monastic Legacy:

Benefit: Add half the levels you have in classes other than monk to your monk level to determine your effective monk level for your base unarmed strike damage. This feat does not make levels in classes other than monk count toward any other monk class features.

Evangelist, Aligned class:

Evangelists come from many different backgrounds, and they show an unusual range of diversity. At 2nd level, the evangelist must choose a class she belonged to before adding the prestige class to be her aligned class. She gains all the class features for this class, essentially adding every evangelist level beyond 1st to her aligned class to determine what class features she gains. She still retains the Hit Dice, base attack bonus, saving throw bonuses, and skill ranks of the prestige class, but gains all other class features of her aligned class as well as those of the evangelist prestige class.

Do I get 1 1/2 times my unarmed strike progression per Evangelist lvl?

Does this break the class?

Would you allow it?