I don't think that is true. I thought it seemed a little "mellower" than a regular SR but it is pretty growly.
You may think what you will, but I own both SRs and SRT so I can A/B them
The SRT neck is chunkier - to my hands it feels more like a full C, while the SR (5er) feels more like a D flat in the middle; but strangely I find it actually more comfortable than the SR neck

