I really am not a boaster but im skilled but I agree with his video. True skill could also be showed if you defeat higher, high, or god (spam) tier characters with supports when you are using low or medium tier characters with ok supports.
E.g. I use Tobirama Senju, young sasuke (chidori) or itachi fireball support 1, and darui support 2.
Neither of my supports are 'broken' and Tobirama hasn't a single move that could be spammed, besides his jutsu but that is easily avoidable if you know what you are doing. I slaughter with my team against the infamous Sasuke taka jutsu spam, S1 tobi (hide in bomb spam) and S2 sasuke ems jutsu spam. Or Sasuke EMS jutsu spam, S1 tobi (hide in bomb spam), S2 kimimaro.
I dislike spammers but I ABHOR people who run around using literally only jutsus and mostly supports to win and then retreating for cooldown.
I am getting better at not being competitive on NUNS3 but it is really hard when people insult you or leave the battle after first fight, because you simply didnt hold up against young lee spam or IA spam.
Theres a reason why I usually fight single battle. Once you trap a spammer, they are done for, no spam supports to save their a$es