I don't think this is necessarily true, especially with the 2nd gen issues. No debating that Toyotas are reliable and dependable vehicles, but many people were experiencing crippling frame rust issues within 5 years. This points t to manufacturer and supply issues.
Also, this issue is by no means limited to Toyotas on a global scale. People with Nissan Frontiers/Navaras in Great Britain have been experiencing frame rot to the point that their trucks essentially snapped in half. The issue was traced to the frame supply origin, a company in Spain. Luckily, the Nissan vehicles based on the F-Alpha platform here in the US have had no such issue.