Collect for Memorial of St. Dominic

I guess I am always griping but really the Latin collect for St. Dominic is very poorly translated even in the more recent
 version: 

Adiuvet Ecclésiam tuam, Dómine, beátus Domínicus méritis et doctrínis, 
atque pro nobis efficiátur piíssimus intervéntor, qui tuæ veritátis éxstitit
prædicátor exímius. Per Dóminum.

O Lord, may blessed Dominic help your Church by his merits and teaching
and may he who was an excellent preacher of the truth also be a most merciful
intercessor for us.

This exactly why I pray the Office in Latin

The point being of course that St. Dominic was a great preacher but that is not really what we need from him now; what we need now  is his prayers.