I don't think anyone was outraged about vegan sausage rolls other than him. Why would they be? It's not as if we have to eat them.
That's the exact problem I have with piers now. When he first started out (whether you agreed or not with him) he debated about proper issues in the news. Now they want an 'outrage' on a daily basis for some cheap headlines and now the stupid stuff comes out like vegan susage rolls, being a vegan, having man flu and all that trash.
The Vegan Sausage roll thing was something Piers actually wasn't seriously that bothered about. I imagine he did it much to use outrage to drum up sales, considering he teased Susanne a lot on her organic diet stuff and was quite willing to take up a dare on doing vegan/organic diet if they won the NTA's last year. I'm sure he does genuinely enjoy his meat, but when I did watch GMB (live abroad now) - I generally got the impression it was put on a bit, which isn't entirely unusual for TV...
But is it really OK these days for adults to play characters and troll people for the sake of getting attention?
Most presenters/personalities in the public space will usually exaggerate aspects of their personal self for a public persona while actually being a bit different in real life. You wouldn't have your Kenny Everett, Johnny Ball, Ant & Dec and Stephen Mulhern's if they just acted as they would in a non-camera running setting.
That and tbh TV is more interesting that way. Sometimes you want to see people play wack-a-doodle versions of themselves. That's why shows like Big Breakfast and SM:TV live generally go down as some classic TV. I wouldn't want "character" presenting to ever be totally phased out.