i have never flown in a wide body turkish aircraft with these standart short-medium hall recliner seats. even for their longish trips they only have these seats on their 737-9 which fly to their 6-7 hour long african flights.
they had a few wide body aircrafts left with not lie-flat but angled flat seats but I think they are all fitted with lie-flats now. I think your chances of getting a regular recliner business seat to mauritus is close to zero. TK would not fly a 10 hour trip to a popular tourist destination on a night flight with those recliner seats. This is all from my experience and I do not want to be the person you come back to yell at though, so you better call TK and ask them.