I think the main issue is, when you get a great shot contest on a sharpshooter, the shot drops like this is 2k15 after patch 4.
It's annoying not to be rewarded, not matter your defense "level" when you close out and contest.
Hell I had a shot contest the other day where I got to him and jumped to block it, nearly straight up and down, not lunge type of block and they still drained it from the corner.
So I made a LDD.
The problem with lockdown defenders is they are so insanely bad at offense you can't be viable at all. I have the post moves to break someone as a center, and I just miss the easy layup after a perfect drop set, or up and under. I miss 7 ft miss mid range wide open shots standing still. I miss hook shots, I miss dunks, I get blocked. It's not worth it to be a LDD.
Mind you my LDD has 22 badges, but its simply better to play on my Sharpshooter and spam square for steals, and hope they miss time their shots enough to have them brick a 3.
The player movement in this game is still insanely biased towards the offensive player creating space and it makes it nearly impossible to always lock someone down, because sooner or later my guy gets stucked in to another player on a pick and roll, or something dumb happens and they have a open shot.
Archetypes are an interesting concept but it's not working in my opinion, if it was, we would see an equal number of archetype per position, but SGs/SFs are 90% shot creators/sharpshooters, PGs are usually Shot creators or playmakers, PFs/Cs are almost all Glass Cleaners, etc etc.