Voodoo;
Mechanical dial locks have over 100 years of history. The pitfalls are well known, & the present quality units are very good indeed. Given proper maintainence, a good mechanical dial will provide centuries of trouble-free service. That being said, there is a lot of cheap junk in low-end 'safes' that could be upgraded by putting in an electronic & increasing the protection.
Good electronic locks do not, of course, have the history that the mechanical units do. However, to categorize all of them as being easily defeated, is entirely incorrect. I happen to have electronic on my personal safe & am very satisfied with it. But, I have one of the better S&G locks, not off-shore garbage.
Or, to put it another way, the U.S. government now specifies an electronic lock on the current field safes. It's a self generating type & is built to withstand extremely rugged use. You don't want one, they are NOT cheap.
By the way, I'm a locksmith.
900F