I'm not sure that's laughable.
From where I sit the negative bias is evident.
But we all hold bias in someway or another.
It's human nature to do so.
I would 100% agree that bias exists in everyone, in fact I've pointed that out in a number of threads over the years.
However that bias doesn't have to for a single title or series, a concept I find to be rather odd and counterproductive.
My personal bias in regard to racing titles is for the best physics simulation and racing recreation than can be achieved. As such I'm OK with visuals taking a hit if it benefits physics, and I like real-world racing series rules implemented in titles, along with formation laps, etc.
Those massive drops are only at very specific conditions, dont exaggerate, dont take the digital foundry video so seriously because those people chose the worst case scenarios for the frame drops, its very clear, most of the time GT5/6 run in the window of 50-55-60 fps which feels definitely far better than the static 30 fps.
Sorry but the conditions in which they occur in are not that uncommon, unless to avoid them you avoid larger grids, weather, city tracks and the cockpit view. All of which had a large impact on the framerate in GT5. I was for that exact reason that PD patched out a lot of the trackside detail for city tracks, a move that certainly helped, but didn't fix the issue in its entirety.
Now you may be happy to avoid these areas and situations, but when taking about the titles as a whole to start being that selective is to ignore that these problems most certainly do exist.
And let me tell you, I get the impression that you are biased against GT, if you reach to conclusions of me being biased I can also do the same since we are both members, right? I get the impression that all you want to hear is "You are right, GT sucks"
Yep I'm so biased against the GT series that I own every title, got my copy of GT3 (my pick of the series to date) signed by Kaz and Jordan, wrote a series of tuning guides for GT4 that ran to over a hundred pages and have been downloaded hundreds of times. So bias against it that I wrote just how positive I was for the changes I saw in it at the Copper Box.
I actively hate GT so much that when PD finally patched in torque steer to GT6, rather than avoid the fact (as no one else had posted on it) I gathered evidence of it and posted it for all to see here at the largest GT fan site on the planet!
I'm so biased against GT that I big up every other series that could challenge it in any way, which is why I have complained about the droped frames in PCars replays making them impossible to sync with in-car footage, that the controller set-up for PC is appallingly done and that the FFB settings as so absurd as to need a reference website to get the most out of them. In the same way that my review of AC described it has having trackside visuals from the PS2 (cardboard cutout crowds to be exact) and went as far as saying that as a game I simply could not recommend it (which I have never said about GT).
Lets not leave rally titles out of this either (as GT has done that so you would think I would big up the competition as an easy dig at GT), Dirt Rally I have described as having noticeable issues with the tyre model on tarmac, and messed up aero and vehicle weight; Dirt 4 I said took two steps forward and two steps back in these areas, fixing some physics issues only to replace them with others. Then we get to Seb Loeb Rally Evo, a great physics engine wrapped up in some of the worst visuals and sounds ever seen on the PS4 (and sounds wise since the PS2).
That's how biased against the GT series I am.
I've never comes close to suggesting that you should say that GT sucks, rather it would be nice if you could recognise that, just like every other title, it has its weak areas.
I mean take a look at what triggered you in this case, that DC might look almost as good as GTS!
Not look better, just almost as good.