I do believe if he wish to remain an active member of the DRF with apanage and all, that he should step up his workload - and soon.
Let there be no doubt about that.
But keep in mind that while Frederik was in Greenland finding himself and finding a meaning with his future as king and not least finding Mary. (And fortunately he did! On all three counts. For Frederik as well as Denmark. Or we would very well have had an unhappy Crown Prince by now).
While that went on, Joachim was working on a pretty derelict estate, while also taking part in official functions and travels. He was raising a family and trying to mend a marriage that for whatever reasons was creaking in the seems. Not getting much help from Alexandra BTW, because she's a city-person and Schackenborg is about as far from the city as you can possibly get here in DK, unless you move to a very small island.
Then his marriage failed. It could happen to anyone, but Joachim got all the blame.
He had to pay big time to his ex-wife. That wouldn't exactly have helped his finances in running the estate on top of all the other worries and the feeling of failure he must have had.
I think J&M should both step up their workload and I'm counting on them to do it. The regent couple are getting old and the truth is, that Frederik could become King any day. Joachim and Marie will be needed. I think they are doing a good job. When they do it.
AFAIK, Frederik was in Greenland for a few months only, not years, so I doubt everything you wrote took place during those few months.
BTW, was Scackenborg really derelict in 2000? I thought it had already been extensively renovated twice by that time? With J parents money and the wedding gift.
I've never had an interest in Alexandra but have read enough to really not blame Joachim alone for the divorce. Quite the opposite. It's a shame that Joachim, and only Joachim, was held responsible for the divorce.
Really not fair, I think.