TEs, QBs, D/ST and K are all streamable week to week. That’s why I don’t like to waste draft capital and draft any of them early. It’s easier to find cover for one of these positions on a weekly basis and still score good points than it is to find a good WR or RB.
While I don't disagree and there are some great deep TE options this year as well, Kittle and Kelce are a different breed and absolute values if they fall enough.
They're both projected by the experts on average for around 90 receptions, 1,100 yards and 6-8 TDs. Which basically gives you a WR1 - only Thomas, Adams, Julio, Hopkins and Hill are projected for more fantasy points on average next season. So Kelce is projected to be
the WR6, and you get to "set it and forget it" at a position which has been fantasy wasteland the last few years and very hit and miss. If they last long enough, they provide excellent value and I'm gonna take them over the likes of Evans, Golladay, Robinson II, Cooper, Thielen, Beckham, ... all day because those players all have their own issues and doubts hanging over them.