Not when "large money=huge money" constitutes a much larger risk than just leaving the Deadpool guys to their own devices.
We're not talking about any other movie out there, we're talking about the movie that destroyed the box office when it was released, so logically a sequel done by the same guys in the same manner is guaranteed to score a profit no matter what.
Too much involvement may make it lose why the movie worked in the first place, and because they don't know with complete certainty (because they're idiots) why Deadpool was so very successful, they won't want to meddle with the development of the sequel for this exact reason.
The way I see it is that the way they see it, if they just give the people who made Deadpool some resources and tell them 'do whatever you just did again', it's guaranteed that they'll get a large ("huge money") return.
Emphasis on "some resources" because the people involved in Deadpool 2's production don't even want a very high budget, and I doubt Fox is going to force them to have a massive budget because if the execs see a massive return on investment where the investment is relatively pithy and risk is minimal, there's no reason to even marginally increase potential risk and if there's anything they don't want to do is to increase potential of loss profits.