It shouldn’t and I doubt it really seems that strange to you if you see and hear much of what passes for reasoned debate nowadays. Most people are followers and don’t think much so can’t I suppose really be blamed for their lame debating tactics imitating polemicists they admire, but accusing other people of ism/phobia/mys[y] as a way to gain advantage in an argument through supposed moral superiority is now pandemic. It’s done on just about every thread here where the tactic could possibly be used, and that’s typical of internet discussion and a good deal of real life public discussion.
That said, since time immemorial it’s been judged non-tactful to state various facts in various contexts. That’s not new. And people might infer bad motives from untactful statements. That’s the kernel of validity in the tactic, where its based on ‘but I just know the unstated thoughts which made you state that untactful fact’. That’s a leap but at least it’s possible the accuser is correct in a given situation (not saying this one necessarily). Where it’s ‘ruled’ that the fact itself is ist/phobic, that’s where it goes totally off the rails IMO.
I actually would like to know if Shodan feels that women who go on public transport are being unwise, and that given the hard realities of society, he feels like public transport is unsafe for women. I wonder if he raised his daughters to not pursue any career where they would have to work in a big city or take public transport, out of safety concerns.