I'm with Nigel Owens on this:
1. The PT was nailed on, 7 points to Wales and YC to France.
2. Liam Williams was a non-penalty, so no 2nd YC for Wales
3. The penalty against Wales No 10 for high tackle was wrong as the contact was only shoulder.
It's unfortunate that these decisions were not made correctly as the first two certainly had a direct influence on the outcome of the match.
It's also sad to see the French player faking his reaction as if he'd been neck tackled - not what you want to see in rugby, and ironically this is exactly what the French coach accused Wales of in the post-match interview.
The YC against Falatau was interesting as he didn't change his line, or speed, and was making his way back to onside without looking at the play, and the French SH ran in front him him and caused the collision, drawing the penalty. I wondered if this was similar to others we've seen plenty of, where they have been called as, "No, I'm not going to give you a penalty for running into him" - so perhaps this was just clever play by France to draw it.
Wales could of course have made life easier for themselves by not making so many repeated infringements in the red zone, and yes refereeing is a hard job, and we are all just human.
Oh, and yeah, I think it's pretty obvious why it makes sense to give a little more credence to people who actually HAVE been international refs, like Nigel Owens and Jonathan Kaplan - even if (when) they are outspoken