I-I'm sorry? What the actual hell?She's an old friend of Brock, which means he must've have had some idea of contests way long before those being formally introduced in Hoenn, and never mentioned it before...She's an old friend of Harley, who isn't really the most friendly person out here but she somehow is. She defeated Drew a long time ago so badly that it left some emotional scars on him (actually I like this since he shows a more insecure side never seen before, strengthening his character). And the worst thing, she easily curbstomps May, despite her being quite experienced at this point and not being her first Grand Festival. Sheesh, at least Ash gave Tobias a bit of a fight and went out like a boss, May got completely flattened in an instant and never posed any threat to Solidad.
When any other series sets up a character like this, they are meant to be beaten. Shockingly revealing all these previously unknown feats and connections to pre-established characters is a tried-and-true trope to hype up the big antagonist, making their defeat all the more satisfying. It's the fuel behind Darth Vader, Freeza, Itachi and countless other legendary villains. It's like pasta with tomato sauce, at best potentially incredible and at worst just kinda mediocre, almost requiring a deliberate bid at narrative sabotage to mess up badly.
And that's before you consider the meta context behind these moments. The Pokemon anime's primary function has been and always will be as an advertisement for the game. It's the 21st century anime equivalent to the G1 TMNT or Transformers shows. That isn't meant to be an innate dig at its quality, that's just the circumstances behind its existence. As an advertisement for Generation 3, May is a direct adaptation of the in-game protagonist, the first of her kind in regards to frontrunning anime characters for the given season. The centerpiece of her arc is contests, a key side feature from Ruby, Sapphire and Emerald.
All of this is easy. All of this is straight-forward. And yet they somehow take a simple premise for a simple show and morph it into this monstrosity. From how you describe it May doesn't even put up a major fight against this Solidad fella, she just keels over and gets eviscerated. They made the conscious decision to make the protagonist of the game this season is modelled after look weak and pathetic, the climb through the representation of a major in-game attraction seem like an exercise in futility. Going back to the Transformers comparison this is like if they made a brand new Autobot toy only for the episode advertising them to feature a curbstomp by a new Decepticon who themselves never gets a toy, with both never being seen again after the fact and as such never giving the Autobot a chance to rise up to the challenge and complete their hero's journey.
Who the fuck writes like this? How do the Pokemon license holders consider this a good representation of their games and brand, a brand steeped in the idea of overcoming the most incredible odds with your favorite creatures? Star Wars The Last Jedi opens with an old, cynical version of Luke Skywalker who has given up on the Jedi ideals after his failure to prevent Kylo Ren's turn to the dark side. That movie ended with Luke waking up from his stupor and triumphantly reclaiming the mantle of the galaxy's hero one last time to face Kylo Ren and bring hope to the sequel trilogy cast. That movie's portrayal of the character was also exceedingly controversial with the fanbase, prompting hundreds, if not thousands of hot takes and essays about it being misguided at best and a total desecration of such an iconic character at worst in spite of that hopeful final note. And yet it could only even begin to faintly dream of being the unequivocal narrative trainwreck this series seemingly pulls with every one of its major cast members. I thought the Kalos league fiasco marked this bizarre show's most profound failure at resolution, but it seems I was mistaken.
Or maybe I'm just talking out of my ass? Like I said previously, I don't follow this show nor its history in any depth. Maybe there's something I'm missing. Please let that be the case.