My exact words were, "I'm not saying his career in general is a joke...."
If you think it was, you are certainly welcome to that opinion.
Now, to list all his chokes would require an offensively long post. Do you consider hid Foot Locker loss to be on that list? It may or may not be. He did not win as per his and Al's expectations, but it's not like he DNF'd. Let's get to the NCAA. His first individual title was in late 2008. That means all of 2005, 2006, 2007, and a few weeks short of all of 2008 include no such feats, but public and sometimes spectacular failures.
Starting in 2009, Rupp entered a period of making it into the top-10 at big events. Note that the 2008 Olympics are not included here, but to his credit he did finish and didn't get lapped. This is also a stretch in which he won 10.000 races regularly - if they were restricted to US citizens. If not, he didn't. 9th in the 5000 at the 2016 Trials would be tough to spin as a 'good race' so I will include it on the 'bad'.
Again, it is exhausting to list them all, but the 2017 Prague Half Marathon is one race that is hard to spin as a success. His time was around half of what some posters on this thread consider realistic for a full marathon at this stage in his career. At least a top-10 would be some consolation. One well known far from successful race was the 2017 USATF Outdoor 10.000. He just beat Estrada in a time 2 minutes slower than many posters predict he is about to run soon. I am not aware of a track race Rupp has participated in since this embarrassment.
One of the most universally recognized and highly publicized (there were cameras, after all) devastations was 2018 Boston. This event was in weather that amateur runners were willing to run shirtless in. The finish cameras literally showed as much during the interview portion of the broadcast. I personally ran in colder weather this morning. It was too cold to rain so all the wind-blown precipitation hitting me today was snow or sleet. I was in short sleeves top and bottom, but the way.
Some might suggest 2018 Chicago was a failure - off the podium and more than a minute behind Farah - but that depends on how success is measured. 2019 Chicago was a spectacular - and again, closely covered by camera - choke. No possible spin makes this a decent performance.
These are just some of the low-lights. I do not mention highlights, which are also numerous. This is not what the poster asked of me. Great career overall. I do not argue with those making such a claim. What I vigorously argue with, and have proven, is the notion that if he shows up, he wins. True, his is good at dodging. As good as a sprinter at avoiding races in which he is pretty sure he's outclassed. Hard to fault anyone for that, unless you expect me (and one poster at least does) to consider him an all-time great. He doesn't attend so many races where he'd be lucky to scratch his way into the top-10. Dodges London annually. I'd probably do the same if I was fortunate enough to be at his level - or where he was a few years ago.
He also avoids the track, or has for years, anyway. What will happen this time? I don't know, but the idea of him starting unless he's reasonably confident in both a in and decent time is far from a given to me. He is good at bailing out when the circumstances are not perfectly aligned - I'll give him that - but he has started races and not been where he nor his biggest fans thought he should be. I pointed out just a few such times. Will the impressive Rupp show up? Will the unimpressive Rupp show up? Will the unimpressive Rupp not start? We shall see.....