Thats completely false.
Brian Burns just went for 3 picks including a 2nd rounder just this offseason after he had been franchised tagged and signed a massive extension. This also happened right before the draft when picks are at their highest value.
Other recent NFL trades...
Chase Young a 3rd rounder
Sweat went for a 2nd rounder
Leonard Williams went for a 2nd and 5th rounder
Aaron Rodgers netted two 2nd rounders
Darren Waller a 3rd rounder
Sean Payton a 1st rounder
Calvin Ridley a 3rd and 5th
Chase Claypool a 2nd rounder
TJ Hockenson a 2nd rounder
Roquan Smith a 2nd rounder + 5th rounder + a player
Kadarius Toney a 3rd and 6th rounder
Christian McCaffrey a 2nd, 3rd, 4th, and 5th rounder
Deshaun Watson (3) 1st round picks + 3rd round, (2) 4th rounders
Devante Adams a 1st and 2nd rounder
Russell Wilson 3 players, 2 1sts and 2 2nd rounders
Khalil Mack a 2nd and 5th
Yet you believe that the best pass rusher in football who still has multiple years on control would only get you a 2nd rounder? The market is always fluctuating, but there is zero chance 2nd round draft picks got that valuable overnight.