Sniper:

I agree with you 100%. If a controller vectors you inside the FAF, several problems come up.

If conducting an ILS, you'll be above the glideslope before you capture the localizer, thus being high. If you choose to descend, then you aren't inside the obstacle protection zone.

Additionally, there is a reason why there is a glideslope intercept altitude published. This is so you can check to make sure that you are on the correct lobe of the ILS. If you intercept inside the glideslope interecept altitude or FAF, you could find yourself capturing the wrong lobe (high or low), both of which are bad.