Watch Goedert - after pushing Jaylon he immediately turned toward Wentz to look for a throw. He knew he was an eligible receiver.
But it wouldn't matter even if Goedert thought of himself as a blocker, because it wouldn't change the fact he was an eligible receiver, and had to be treated by the defense as such.
And as such, Jaylon could not hit him without it being a penalty. Any defender in that situation could be easily knocked down because they aren't able to deliver a hit, and because they aren't expecting an eligible receiver to go after them they aren't braced for an impact.