Without a Thermo-Bob a Gen 2 never warms up!
A "definition of terms" would be useful in discussing the concept.
What does, "warm up," mean? I've observed KLR's (without Thermo-Bobs) heat coolant to the point the radiator fan activates. Doubtless, the higher-temperature of the Thermo-Bob thermostat results in higher average coolant temperatures, but . . . what are the maintenance and service life effects (e.g., addiional miles before major overhaul, additional operational hours without malfunction) of the higher operating temperature?
After thermostat opening, seems to me the bike depends principally upon the water pump circulation and radiator airflow for cooling, with or without a Thermo-Bob. Yet some users believe the Thermo-Bob itself enhances cooling, and they are comforted by higher and more stable coolant operating temperatures.
Do slots for air passages in the bash plate enhance cooling? Yes, but to what extent (oil/coolant temperature difference) and with what reliability and durability consequence, if any? Regardless, cut 'em if you want 'em; anyway, the aesthetic effect of slots is pleasing.
Similarly, the Thermo-Bob, from many accounts, is well-made, competently designed, extensively tested, responsibly marketed and performs as advertised. The device's correspondence to bash plate slots remains unknown.