I don't feel like I'm watching a competition between sportsmen when I see Geraint Thomas competing for GC at a Grand Tour, though. It'd be like watching Wayde van Niekerk or Allyson Felix winning marathons.well, Thomas didn't beat small riders/teams when he won his big races. and, unlike Wiggo and Froome, he never needed lawyers.
The secondary issue then becomes that if I can't suspend disbelief enough to believe I'm watching a competition, then all I have to watch it for is entertainment, and Geraint Thomas, at least on the bike, provides me with no entertainment. Most other people that I've spoken to that have expressed the same statement as you with regards not needing to have any trust in athletes that they're watching a legitimate competition have expressed that sentiment from the perspective of, as long as they're being entertained. As a result, though, this has usually been used to defend guys like, say, Vino or Supermán, whereas teams like Sky who exert tight control over racing and tend to be perceived as subtracting from the entertainment are not usually favoured by those people - making you very much an exception to the rule, which is why I questioned why you had become such a big fan of the team and rider.