Tyranitar should not be mentioned as a counter at all; its OHKOed by a Tail Glow Bug Buzz and 2HKOed before one whilst being slower (both calcs without Life Orb and without SR) and on the physical side its doing worse with Brick Break/X scissor and without its sandstorm boost.
And Machamp is taking 79.95% - 94.53% from a +2 Ice Beam even without Life Orb and can't outspeed nor OHKO with Bullet Punch (Syclant even has a 50% of surviving two Bullet Punches from 394 Atk Bullet Punch). Poliwrath and Hariyama are easily better counters as they actually resist both STABs.
Bulky waters can't really do jack to Syclant either, it Tail Glows on the switch and 2HKOs all of them with Bug Buzz and is faster and none of them can OHKO with Surf so they will all lose if they try to switch in on it.
I have qualms (/nitpicks) about the order of counters it is usually best--->situational checks but the best counters yet Blissey is mentioned after sketchy counters and checks that can get OHKOed on the switch if they're not careful and don't have recovery. Blissey is joint best counter to the most common set and should be one of the first mentioned.