Rudy,
I would have tried a warranty repair. For as much as Chaco and Reef charge, they should last much longer. Looking at the top of your footbed, they are hardly broken in.
In this post on my blog, these Reefs wore out after several years.

You can see the top of the footbed is worn and shaped to all five of my toes. The outer sole is worn too. I replaced these with a pair of Chaco my daughter had given me as a present. This was in 2015. I had to retire the Chacos earlier this year. Over 4 years of full time use, except when I went backpacking. I poured over 1,000 square feet of concrete and completely remodeled my house in the Chacos. Worn them around town, day hiked in them on numerous camping trips with Joyce, and even wore them to a wedding when Joyce forgot to supervise my wardrobe choices. The Chaco straps were still attached to the footbed, but the webbing was very frayed and falling apart at the top. They outer soles were worn almost to the midsole. This is what should be expected, IMO.
Chaco suntan

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