As for Hubmann at the WC, you can see he caught up with Kyburz and Daehli, and after that his performance stayed the same as before catching up with them. He didn’t suddenly increase speed or accuracy, there is no distinctive ‘before’ or ‘after’ in his splits (though there is, again, for Daehli).
Also the day before, when Bergman caught up with him, you can clearly see he ran his own race. As soon as Bergman made the smallest mistake, Hubmann was off and kept running a good and steady race. This clearly shows Hubmann didn’t just follow or let himself get distracted.
Maybe (or probably) he profited from the other runners, just as other runners probably profited from him. But in my opinion Hubmann did run his own race throughout the competition.

And he didn’t “cry” – he just pointed out how this unfairness happens every year.
https://www.instagram.com/p/CRIuZxXMFId/

I thought Hubmann was one of the few athletes with the stature to make this point without people personalizing it against him. Sadly not – sometimes you win, sometimes you lose, but either way the unfairness continues.