A tube cannot blow out inside the tire with a bang, because a bang is caused by a sudden change in volume, an expansion. Such an expansion is not possible within a tire casing. Beyond that, the resulting clean slash in the tube cannot occur from rim tape that would cause a gradual failure along an abraded line that extends beyond the end of the split. A burst into a rime hole would cause a starburst hole that is smaller than the rim socket because the tube shrinks when no longer inflated. Tire blow-off occurs most commonly on tandems where substantial energy of descending mountain roads is converted to heat in rims by braking, in contrast to a single bicycle, where most of the energy is dissipated by wind drag.
Rim heating has two effects, of which increased pressure is probably the lesser one.
Heat softens the bead of the tire so that it can squirm out of its clinching seat in the rim. Tire casing flex at the load point works the tire so that it squirms out of engagement. Heat also increases lubricity of the bead against the rim to facilitate creep. Formerly, base tapes made of a dense gauze-like tube, filled with Kapok, were offered for mountain tourists. This padding served as insulation to prevent the rim from heating the tube and increasing pressure.