Welcome news, but it's still going to be too steep for most who don't have help from relatives/friends.
Finding £65k is almost as difficult as finding £90k. And the sponsorship amount of £23k funded by Flybe essentially has to be repaid to them over the first five years of employment (via a salary sacrifice scheme). If you also have to service a £65k loan on top of that then good luck keeping your head above water on a Flybe FO starting salary.
At least they fund the type rating entirely (although with a 3 year £13.5k bond). However, getting a Dash 8 TR will not necessarily help a great deal if it's jets you eventually want to fly, and the process of moving up to heavier stuff would - therefore - be expensive.
For all the above reasons I don't think this would be something for me. All the best to those who do go for it though!