If you think about what the TL/TLX has always been, this is that same formula but significantly improved and sharpened, so I am not seeing a reason for the hate either. We would be lucky if Lexus gave the ES the same level of attention and investment over the Avalon. Much like Lexus has given up on chasing the Germans, I think Acura has realized they must do the same and build cars that will appeal to their buyers because they're not going to be cross shopped much with BMW, Mercedes, etc.
0-60 in 6-7 seconds for a car that weighs ~4,000lbs and has a 270hp I4 sounds about right to me. The interior space was sacrificed for design, as engineers saw that people seeking space chose CUVs anyway.
Based on size alone, I do not see this car being cross shopped with an IS 97% of the time. ES is the prime competitor, and this shreds the ES, product-for-product point. I see this TLX as the sporty, techy competitor to the ES, which is probably the best place for it in terms of competitive placement. Bigger, softer, cheaper than a 3/C/A4, more like the 5/E/A6 but not as expensive and not as much product, either.
I know the last decade has sucked, but the idea of the Japanese luxury brands finding their own ways and carving their own path is exciting to me.