I had my first few CTF matches, today. And over half of them were won with either the assist or the direct carrying of the flag by someone with a Lucio.
As EXTREMELY USEFUL as the character’s skill is in this particular type of match and as much as it lets the character shine, it also feels over-powered and borderline unfair. The character having such an ability, even while carrying the flag or just boosting someone who has the flag, ensures that one player will almost always be with a Lucio.
His ability should not effect himself, when he’s carrying flag or any other player who is carrying it. When he drops the flag and if his ability is still in effect, then it should apply, but the boost is a little too much for this type of match. Having him simply boost a whole team to get out and advance on the enemy FASTER, is already enough help. Having it apply whilst the flag is being carried is OP.