No, 1h are far more prone to boucing - or need better positioning PS or heirlooming to overcome it - than 2h. Thrust is a very bad offender, on short range it bounces, stuns you and you are dead, so I only use it for surprise stabs on range, which is kind of tricky, too, when you are against a weapon that's a good deal longer than yours.
It's not a game balance issue, 1h+shield is very competitive, it's just something that makes no sense.