Bowfront seam failure?

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I have heard a lot about bowfront seam failures.

In a rectangular tank, if the temperature changes up or down the glass would expand or contract evenly among all 5 panes of glass, thus the seams should not be stressed.

In a bowfront tank, the front pane is longer than the rear pane, therefore it should expand or contract proportionatly more with a temperature change. Over time this small amount of expansion and contraction could stress the seams causing a failure.

That is just a theory but it is the only reason I can figure why bowfronts should fail so much.

If it were me I would try to round up a number of people on line who have had bowfront tank failures and seek a remedy from the manufacturer, or talk to someone about a class-action lawsuit. As I understand it most companies would rather pay up than spend a jillion dollars on legal fees, whether they are right or wrong.