Yes Lendl's overall stats look good, but not winning wimbledon surely eliminates him from the conversation, he is surely tier 2. He is no better than Mcenroe, infact Mcenroe is the highest of Tier 2, he was solid strong for 1/2 of the decade and after his decline Lendl piled up all the numbers. Mcenroe lead Lendl in H2H like 14-12 or so until 1985-86, it is only after Lendl accumulated a lot of wins to surge far ahead in the H2H, that era was different when players enjoyed partying and staying awake all night, then coming to play next day. This is the same case with Borg and Mceroe both, I think John said it recently that they took pride in staying awake all night with friends and then coming to play unlike today's Big 3 or Sinner etc.... Lendl was probably fully into fitness and accumulated wins after 1985 when his rivals fell off the rails, lol..
Lendl is overrated on TTW by people saying he ruled the 80s. He just ruled 50% of the 80s, rest 50% was ruled by Mcenroe and Borg ruled the 50% of the 1970s. This is how it, Borg was a perhaps a bit better than these 2 and was at the wrong end of age too (remember he is 3-4 years older and having a lifestyle of staying awake night, partying and then coming to fight... similar Mike Tyson who was also like this) ... such people decline quicker.
So Lendl is equal to Mcenroe and nothing more. Mac has more prestigious slams while Lendl has more titles and h2h edges, levels out.
Agassi is overrated too, he is only as good as Becker but his 8 slams makes him being compared to Mac, Lendl, Connors which is a joke. Agassi never ruled any era and was a firm 2 to Pete.
This is how it should be
Tier 1 : Big 3, Sampras and maybe Borg
Tier 2 : Mcenroe, Lendl and Connors
Tier 3 : Agassi, Becker, Wilander, Edberg and maybe ALCARAZ (a bit early but we can put him here tentatively)
Tier 4 : Courier, Vilas, Newcombe
Tier 5 : Murray, Safin, Hewitt, Rafter, Arthur Ashe, Kuerten, Stanimal ... roddick, ivanisevic, krajicek etc too... I dont see these 1 slam winners a tier below Murray tbh...