Lance Armstrong... greatest doper there was or ever will be

I think the opposite is true. And I think a reasonable, and reasoned, scepticism has been replaced with an unthinking one.
There were always reasons to wonder about Armstrong, as there were about every successful rider from the early nineties on. No EPO test, no biological passport. By 1998 and Festina any doubts were gone; doping was rife. He tested positive for cortisone the next year. In 2000 the team doctor was observed getting rid of medical waste including Actovegin. And on and on until 1995 when L'Equpe published proof of his doping.
There is nothing comparable with Wiggins or Sky and there is much more questioning of them, across many more types of media than existed in the 90s. Remember why Wiggins blew his top in that press conference at the Tour? Because journalists were asking him about doping, they were being sceptical.
Sky and Brailsford have everything to lose if just one of their riders is caught cheating. They may have handled a lot of it ineptly but I still see no reasonable grounds to believe they are involved in doping, either as a team or as individuals. I think many journalists and editors, who know how compromised they have been in the past, do not want to play that game anymore. They will also have a harder time doing it with so many blogs and on line news sources nipping at their heels.
It all reminds me of people who say all MPs are self serving bastards; some are, but not all and it's lazy not to try and take a more nuanced view.

I think it's more important now than ever to keep questioning though.

Team Sky are supposed to be the transparent zero tolerance team but they haven't been doing enough to show this and that's why doubt is creeping in.

Wiggins having a tantrum doesn't help - he used to be a lot more eloquent and outspoken about doping.

They're all fart and no poo when it comes to their anti-doping stance and they need to really start living up to their promises.