Some have them. They stated they would continue this. If the bonus is decently high, there will be a negative to balance it out. Currently for sure, several HS scopes have negatives and there is a 5.56 mag with 10 rounds/no negative and one with 20 rounds/-10% reload speed.
Personally, I never minded most of the old mods (there were a few out of whack ones), but people complained, so they made them as they are with very minor boosts. And turned a 12% CHC sight into an 8% DTE sight, strangely negating the 5% DTE sight they also made.
I can only hope some of the old big positive/small negative mods are coming back with the increase of blueprint projects.