English, like almost any natural language, is rich in metaphor. If that's not your cup of tea, fine. But it's probably worth learning to roll with the punches, just the same. Is this really the hill you want to die on?
It's also a shame that you and the other poster are focussing on this rather than the fact that the statement is plainly wrong. There are clearly more than a 'few' veggie-friendly brewers.
So what you've cited in support of your argument in fact militates pretty strongly against it, because a hundred or so breweries isn't a very large subset of all those in the UK - according to CAMRA, that's a total of 1424, which puts the fraction on your list somewhere around seven percent. That's a little strong for my taste, but still a good beer. It is also, one might dare say, a relative handful.
This is a better list, which puts the number at closer to 50% if you use the filter 'England' and then toggle between Vegan and Everything: http://www.barnivore.com/beer?vfilter=All