What yeshiva that you are aware of permits the use of English translated seforim for use by bachurim during sedorim? I know yeshiva that specifically prohibit their use (with the exception of dictionaries) during Seder. I think your concern is not valid at all.
I would counter, that the over emphasis on lomdus to the detriment of learning how to read a genera and read through a sugya with gemara and Rashi is a much bigger problem.