not true and it has been discussed many times in this thread (even kept the pictures, i knew someone else would say that again one day lol)....
again, just remux it to TS or M2TS and you will get true DV profile 8 . I actually watched both Endgame and Infinity war on the x700 in DV + atmos
real DV (ts dual layer but works with single layer too):

fake DV (ts AVC):
