Well, sure, if they were saying that, but they’re not necessarily saying that. I haven’t read their literature, but I’m assuming that they are claiming that their compassion, and abstinence from animal products, is sanctioned and even applauded by the Torah.
I think they are distorting the Torah’s views, but by claiming that they are in consonance with them, and not directly contradicting the words of Chazal, they might be saving themselves from being considered apikorsim.
But it’s impossible for them to really believe that, unless they don’t believe in the Torah the same way we do.
Much like a liberal who thinks they are in line with the constitution. They know they’re changing it to their whims, it just sounds better when you phrase it constitutionally.
But while that’s a valid shittah in politics, it isn’t in Torah.