Update: They would have got into the French challenger. And the Greek sign in is not until Monday.
Does seem a bit strange to not risk it. However I guess the cost of last minute travel changes while earning small amounts does make it a risk. I guess also a few more tournaments together at a lower level to fine tune their teamwork might also be part of the thinking.
Finances must play a part, it's getting expensive to fly and I would imagine they prebooked accommodation. Doesn't Marcus have a family too
In which case I would have thought a chance to play a challenger which has free accommodation and was in the country they were already in I would have thought would be a good idea.