Kenmore Dryer, Replaced fuse then days later thermostat goes out

About a week ago the dryer would not start. Replaced the thermal fuse.

It worked fine for about 5 days and now it will not dry. No continuity on the thermal cut-off so it needs replacing.

I have the original internal-bias thermstat and the two internal connections have connectivity but the outer do not.

Is this normal?

More importantly could there be something else wrong that is causing a ripple effect? Am I looking at flushing money where more and more will continue to blow out or go wrong?