It is, but it's not as easy to solve as it seems, is it?
Even if in our specific instance you back ACL/CCC's stance 100%, to force a club to rent the one ground in existence at whatever cost because it's in the place that bears its name is blocking people into a corner, isn't it?
How can you tell some club's benefactor that OK, the ground owner's charging you £7mil pa rent, but you must stay there at all costs?
But similarly, can you force a council to accept a planning application?
I don't think it seems easy to solve at all. But a start would be clear rules, off the top of my head:
"No club shall leave it's conurbation for more than 5 years, if they do not return within this timeframe they forfeit the Golden Share and start at the bottom of the pyramid"
I don't think that's unreasonable, businesses have all kinds of legal restrictions put on how/where they do business. If the rental deal is really that bad, then liquidation would happen anyway. Yes it would give landlords power to essentially kill clubs, but I'd be amazed at the local council that refuses to either offer reduced rent or allow a new stadium in the long run.
Something needs to be done to put pressure on for a resolution.
The FL can only regulate clubs, though I wouldn't have a problem with Government stepping in when it comes to the planning/rental agreement side to protect community assets.