Your source is just a forum quoting manufacturer marketing texts.

In an accelerated ageing study blu-ray performed worse than other discs:

Overall, the stability of the Blu-ray formats was poor with many discs significantly degraded after only 21 days of accelerated ageing. In addition to large increases in error rates, many discs showed easily identifiable visible degradation in several different forms. In a comparison with other optical disc formats examined previously, Blu-ray stability ranked very low.

https://www.degruyterbrill.com/de/document/doi/10.1515/res-2017-0016/html