Explain this to me

This table contains stats for heroes' picks and bans.
Rank is used to sort heroes by winrate, taking number of their picks and bans into account. Higher rank means the hero is stronger. Rev-Rank (Reverse Rank) is used to show the least effective heroes with the most number of matches.
Balance metric estimates how balanced the meta is (0 to 100)

Median hero picks (mp): 5 - Median hero bans (mb): 1 - Matches: 14

Remove low picks (0.9mp) Remove low bans (0.9mb)

Balance rank	Winrate	Pickrate	Contest Rate
31.0	36.5	26.3	23.7

Hero	Matches	Contest Rate	Rank	Rev-Rank	Picked	Winrate	mp	Banned	Winrate	mb
Dark Willow	13	92.86%	100.00	44.07	2	100.00%	0.4	11	72.73%	11.0
Razor	6	42.86%	98.31	13.56	2	100.00%	0.4	4	75.00%	4.0
Beastmaster	10	71.43%	96.61	59.32	3	100.00%	0.6	7	42.86%	7.0
Naga Siren	11	78.57%	94.92	66.10	6	83.33%	1.2	5	20.00%	5.0
Batrider	12	85.71%	93.22	69.49	5	60.00%	1.0	7	57.14%	7.0
Death Prophet	13	92.86%	91.53	71.19	5	60.00%	1.0	8	50.00%	8.0
Templar Assassin	5	35.71%	89.83	15.25	1	100.00%	0.2	4	75.00%	4.0
Lina	4	28.57%	88.14	11.86	3	100.00%	0.6	1	0.00%	1.0
Witch Doctor	6	42.86%	86.44	35.59	5	80.00%	1.0	1	0.00%	1.0
Omniknight	13	92.86%	84.75	77.97	4	25.00%	0.8	9	77.78%	9.0
Tusk	13	92.86%	83.05	79.66	6	50.00%	1.2	7	57.14%	7.0
Underlord	9	64.29%	81.36	67.80	3	33.33%	0.6	6	83.33%	6.0
Luna	6	42.86%	79.66	40.68	3	66.67%	0.6	3	66.67%	3.0
Nature's Prophet	7	50.00%	77.97	55.93	1	100.00%	0.2	6	50.00%	6.0
Sand King	13	92.86%	76.27	89.83	5	40.00%	1.0	8	50.00%	8.0
Rubick	5	35.71%	74.58	38.98	4	75.00%	0.8	1	0.00%	1.0
Troll Warlord	11	78.57%	72.88	84.75	6	50.00%	1.2	5	40.00%	5.0
Dragon Knight	2	14.29%	71.19	6.78	1	100.00%	0.2	1	100.00%	1.0
Gyrocopter	7	50.00%	69.49	64.41	2	100.00%	0.4	5	20.00%	5.0
Lone Druid	5	35.71%	67.80	45.76	3	66.67%	0.6	2	50.00%	2.0
Terrorblade	13	92.86%	66.10	98.31	6	50.00%	1.2	7	14.29%	7.0
Earth Spirit	5	35.71%	64.41	57.63	4	50.00%	0.8	1	100.00%	1.0
Outworld Destroyer	11	78.57%	62.71	91.53	5	20.00%	1.0	6	66.67%	6.0
Night Stalker	3	21.43%	61.02	16.95	1	100.00%	0.2	2	50.00%	2.0
Dark Seer	2	14.29%	59.32	8.47	0	0.00%	0.0	2	100.00%	2.0
Ancient Apparition	4	28.57%	57.63	37.29	1	100.00%	0.2	3	33.33%	3.0
Leshrac	4	28.57%	55.93	61.02	4	50.00%	0.8	0	0.00%	0.0
Faceless Void	3	21.43%	54.24	25.42	2	50.00%	0.4	1	100.00%	1.0
Tiny	7	50.00%	52.54	81.36	4	25.00%	0.8	3	66.67%	3.0
Enchantress	4	28.57%	50.85	54.24	2	50.00%	0.4	2	50.00%	2.0
Ember Spirit	1	7.14%	49.15	10.17	1	100.00%	0.2	0	0.00%	0.0
Doom	1	7.14%	49.15	5.08	1	100.00%	0.2	0	0.00%	0.0
Lifestealer	4	28.57%	45.76	62.71	3	33.33%	0.6	1	100.00%	1.0
Clockwerk	2	14.29%	44.07	23.73	1	100.00%	0.2	1	0.00%	1.0
Phoenix	2	14.29%	44.07	23.73	1	100.00%	0.2	1	0.00%	1.0
Anti-Mage	2	14.29%	44.07	23.73	1	100.00%	0.2	1	0.00%	1.0
Viper	2	14.29%	44.07	23.73	1	100.00%	0.2	1	0.00%	1.0
Elder Titan	6	42.86%	37.29	83.05	1	0.00%	0.2	5	40.00%	5.0
Kunkka	2	14.29%	35.59	33.90	2	50.00%	0.4	0	0.00%	0.0
Puck	2	14.29%	35.59	33.90	2	50.00%	0.4	0	0.00%	0.0
Weaver	1	7.14%	32.20	3.39	0	0.00%	0.0	1	100.00%	1.0
Abaddon	1	7.14%	32.20	3.39	0	0.00%	0.0	1	100.00%	1.0
Disruptor	9	64.29%	28.81	100.00	8	12.50%	1.6	1	0.00%	1.0
Visage	6	42.86%	27.12	94.92	0	0.00%	0.0	6	16.67%	6.0
Morphling	2	14.29%	25.42	42.37	1	0.00%	0.2	1	100.00%	1.0
Bane	4	28.57%	23.73	86.44	2	0.00%	0.4	2	50.00%	2.0
Timbersaw	2	14.29%	22.03	76.27	2	0.00%	0.4	0	0.00%	0.0
Legion Commander	2	14.29%	22.03	76.27	2	0.00%	0.4	0	0.00%	0.0
Warlock	1	7.14%	18.64	52.54	1	0.00%	0.2	0	0.00%	0.0
Medusa	1	7.14%	18.64	52.54	1	0.00%	0.2	0	0.00%	0.0
Chaos Knight	1	7.14%	18.64	52.54	1	0.00%	0.2	0	0.00%	0.0
Jakiro	2	14.29%	13.56	76.27	2	0.00%	0.4	0	0.00%	0.0
Bounty Hunter	1	7.14%	11.86	52.54	1	0.00%	0.2	0	0.00%	0.0
Pugna	3	21.43%	10.17	88.14	1	0.00%	0.2	2	0.00%	2.0
Venomancer	1	7.14%	8.47	28.81	0	0.00%	0.0	1	0.00%	1.0
Enigma	3	21.43%	6.78	93.22	2	0.00%	0.4	1	0.00%	1.0
Earthshaker	3	21.43%	5.08	96.61	3	0.00%	0.6	0	0.00%	0.0
Juggernaut	1	7.14%	3.39	28.81	0	0.00%	0.0	1	0.00%	1.0
Brewmaster	1	7.14%	3.39	33.90	0	0.00%	0.0	1	0.00%	1.0