Not only is is it a complete tell of whether it will be a run or a pass for some reason a WR has no problem blocking larger stronger players like DE and OLB .
Any defense should key on these positionAL overrides as tells of what type of play the will see upon that alignment as these guys are put in to run block or specifically run routes vs. A Lb. (Run keys and pass keys should change with his abuse)
As the defense can only match by playing players out of postion also via overides and rules. The bigger problem is that a DE would destroy a wr lining up at TE upon his release as well would a LB. And even when they do run block the descrepancy in size is not enough to make of for the effect strength has on blocking.
In mfn one I did this as an experiment to see the effect on size and strength and effectiveness . Something was done about line play why not all players . TE plays on the line? Small DES are pointless but small TES are effective ?