I understand both points and I am a fan of JMD, I don't think his physical development is in question he has always been advanced for his age physically, but I am not too sure how the club rate him, I debated that Worthing was not better than playing for the U21 (last season) and perhaps it showed an indifference from the club towards him, this loan is slightly tougher to gauge, its a good level of football and might add something that the current u23's cannot, so maybe something to gain for everyone involved.
On a wider point I am not an advocate that somehow players need to experience part time football, played by part time players, run by part time managers and coaches with dubious tactical, technical and physical attributes, it is too often filed away under, 'proper football', 'winning mentality', 'mens football' etc etc. with a budget of £2.5 million per annum you would hope that Academy's could create an environment far better than the ones they then feel obliged to loan their players out to, I cannot think of another Industry where if you have an employee of some potential you demote them in the hope they improve.
I agree with you on the Worthing loan however playing in the conference has to be a step up from the U23 league in my opinion. The games are much more competitive and mean a lot more. Although I think the competition is a bit of a farce, I think the checkatrade cup will be brilliant for our academy playing against lower division 'first teams', and you are right than we should aim, in time to create a better environment for development than feeling honour bound to loan out our players.