Dependent upon pricing this makes Anguilla much more attainable for many.
We have been staying there for years, but the ferry/private ferry/flight/departure tax add on to the cost considerably. We have even flown to SJU and then taken planes out of SJU to Anguilla to avoid SXM.
"It is good to do nothing all day, and then to rest"
I see a reasonable amount of people taking a one way flight to Anguilla or to SXM, stay there a few days, ferry over to the other island, stay a few days on other island, and then a one way flight home.