NO. This is an old wives tale, misnomer, web BS, whatever you want to call it.
It's not that you CAN'T get wooly and uncontrolled bass from a poorly designed tube setup.. But if you do it's just that, poorly designed. Often times cheaper tube amps will play to the "tube strengths" (or what most people think they are) and go for midrange lushness above all else. But this is design, not inherent to tubes.
Tube amps known for good bass that I have heard: Audio Research, Manley, Rogue, there are many others. I would say the Jolidas I have heard are more mid-focused, and although they certainly don't have "one note" bass, they don't have the slam some folks crave.