Are there any specific, measurable claims (and evidence) being made here with regards to what this supposed to achieve? "[Encouraging] a more in depth reading a

Are there any specific, measurable claims (and evidence) being made here with regards to what this supposed to achieve? "[Encouraging] a more in depth reading and understanding of written content" is pretty vague. Does it help with recall? Memorization etc. Personally it reads like those "dyslexic" fonts which actually make reading harder for a lot of people.