I've got it!
Yes, maybe he has it.
Yes indeed, I've got it.
We've seen before and we're seeing again that despite the TSX being a relatively small car, tall people often like it.
Why? I've got the answer, or at least a big part of it.
Digression/Introduction: Many phenomena are multidimensional. Take "handling" -- it isn't just one thing. That's why some people might feel that the TL handles better than the TSX, even though most by far feel the opposite. The TL probably has less body roll, and of course it has more power. So if those things are a lot of what you consider "handling," then you could feel that the TL's handling is better.
And obviously the "size" of a car isn't just one thing. To take the TL as an example again, the TL is a car of extremely unusual proportions; to me that's the single most remarkable thing about the car. It's unusually WIDE relative to its other dimensions. I notice things like that because I happen to be very sensitive to a car's size. The difference between the TL and the TSX is only about 3", but to me that's extremely noticeable, in a negative way. But of course it adds to the seating space, and if you're a "wide" person or if you just like lateral space, it's a plus.
Back to the subject: The TSX is a relatively small car, and so we wouldn't think it would be very good for tall drivers.
HOWEVER -- and we hardly ever mention this, but -- What's the most unusual thing about the TSX's size?
The TSX is a VERY HIGH car. Not counting wagons and SUV's (etc.), it's higher than any other car that's anywhere close to its other dimensions except for the VW Passat and the Infiniti G35, which are very slightly higher (and I bet those cars also are more comfortable for tall drivers than we'd expect). The TSX is higher than the TL, and it's even higher than the RL. It's also higher than the Audi A6, BMW 5-series, Cadillac DeVille and Seville, Lexus GS300/430, Mercedes E-class, and even the Volvo S80.
I'd guess there's our main answer.