Dortmund's Bundesliga points starting with 2 years before Klopp took over and then looking at his first 5 seasons at the club, then the same for Poch at Tottenham:
06/07: 44 (9. place)
07/08: 40 (13.)
Klopp takes over
09/10: 59 (6.)
10/11: 57 (5.)
11/12: 75 (1.)
12/13: 81 (1.)
13/14: 66 (2.)
Klopp won two league titles and 1 cup against a Bayern side that went to 3 CL finals in 4 years during that time. He took over a club, that actually fought against relegation and was struggling heavily with debt and had way more limited ressources compared to Tottenham under Poch. He actually doubled their points from the season before he took over to their 2nd title winning year, when he set a new Bundesliga record for most points in a season.
You really want to compare that with:
12/13: 72 (5.)
13/14: 69 (6.)
Poch takes over
14/15: 64 (5.)
15/16: 70 (3.)
16/17: 86 (2.)
17/18: 77 (3.)
18/19: 71 (4.)
In 3 of those 5 seasons, Poch couldn't actually reach a points total that was above what Villas-Boas reached in 12/13. He also benefited from United's decline after Ferguson left along with Arsenal's fall during Wenger's last years. Tottenham played one rather great league season, in which they still weren't good enough to be in the title fight against a very good but far from truely great Chelsea side.
Even if you believe your mighty Premier League fantasy where even when Leicester wins the title, it's much harder than beating Heynckes' Bayern side to a league title, you simply can't deny the massive improvements in points Klopp achieved consistently over 5 years. Simeone's spell at Atletico is comparable to Klopp's spell at Dortmund, arguably even more impressive. Poch on the other hand had one great league season, that still wasn't good enough for a title challenge and one great run in the CL. He's more or less still an inconsistent manager talent, who showed glimpses of greatness and deserves a shot at a bigger club (I'd happily take him at Bayern right now). But he's nowhere near Klopp's or Simeone's level unless he has proven that he can actually overcome great sides. Poch's Tottenham also - despite the great CL run and the amazing comeback against Ajax last year - lacks performances on the big stage like Dortmund's 4-1 win against Real in the CL semifinal or the 5-2 smashing against Bayern in the cup final. Performances that show, that his team actually outplayed and dominated stronger teams, when the pressure is high.