Having encountered, one way or another, a number of rifle "blowups", I think it is safe to say that a bolt actually blowing out of the rifle is extremely unlikely. Far more common is barrel failure, usually due to an obstruction, or rarely to a manufacturing defect like a steel flaw or too deep fluting.
Extreme overloads usually cause case failure, in which the case head literally melts or dissolves, letting high pressure gas loose in the action. Some actions handle that situation well, others do so poorly and the shooter can be injured or even killed. If you are overconcerned about such incidents, the answer is simple: sell your guns and give up shooting. It is like automobile problems; one might not buy a brand known to have problems, but I know of no one who has given up car ownership as a result.
I have not owned one of those Marlin rifles, but I have no doubt it is well made of excellent materials, like all the other Marlin products, and should stand up to any factory load or reasonable reload with no problems. I know Wolf ammo to be "dirtier" than some other brands, but have never heard that it is dangerous or is loaded hotter than any other factory ammo. That sounds like a story told by someone who has another brand to sell.
Jim