With the benefit of being able to slow it down and look at it:
1 - The LOS is the 49. The TE gets as far as the other 49 and has made a block and turned around (or been turned around) and the ball goes to the sideline and pretty far downfield. As others have mentioned, maybe you should be looking there, maybe not (it's not just a lineman, it's a lineman on the other end of the line from where the wing is positioned), but I think I'd let that go. There
is an end on the linesman's side of the field who's going downfield, that probably should have been where his focus was.
2 - Initial contact does appear to be on the upper chest and then sliding down to take the defender's legs out. You could make the case, I guess, and you can't go wrong in my book with a safety-type foul that could protect the next kid from getting it in the knees, but if you saw the contact from start to finish, you might very well say it started high.
3 - I
do have a flag for lack of tripod, though.
