No, the 3-3-5 is for people who can't keep a rotation of NT/1Techs, and who tend to recruit db/lb tweeners. Good athletes but either a little small to be great LBs or a not have the coverage skills to be a shutdown island guy.
Cover db's are incredibly rare, the only thing rarer than them is effective interior linemen. When those guys are identified, they get swept up by p5s.
The 3-3-5 is supposed to take those tweeners and put them in a system that causes mass confusion to the offense. Except we seem to line up in it and then play conventional schemes and then use not enough pressure, and not have it come from different angles, which has not worked at all.