In the olden days, the imbalance of the TE position was addressed through the draft. In other words, if you chose to spend a high pick on one of the 2-3 "elite" TEs, then you had to make sacrifices at the other positions.
But thanks to elevated QB play (and the regression of the RB position), players no longer have to make those sacrifices. There's much less risk these days with spending a high pick on a TE, because you know that you'll still be able to get an elite QB later in the draft.
In the olden days, you rarely saw TEs drafted at 1.1, but Kelce was absolutely worth the 1.1 spot if you played in a 1QB league, because it's just too easy to make up for the pick later in the draft.
Switching to Superflex will reduce the dominance of the TE position. It won't completely eliminate it, but it helps.
Fantasy football needs to evolve with the game. I've been around long enough to remember when people resisted the addition of yardage and PPR to the scoring formats, and now those things are commonplace. And they've made the game better. Superflex is no different.
As for kickers.....they need to be eliminated from FF or they need to be rolled in to the D/ST position. Period. Kickers are a waste of space.